Salerm KAPS Filler Hair Smoothing Kit

Salerm KAPS Filler Hair Smoothing Kit — image 1
77%
23%
81%
Frizz Control Effectiveness
88%
Shampoo Gentleness
79%
Mask Conditioning Performance
73%
Value for Money
86%
Ingredient Quality
76%
Kit Completeness
77%
Scent Profile
83%
Ease of Use
74%
Results Longevity
82%
Shine Enhancement
51%
Volume Ratio Balance
84%
Treatment Compatibility
69%
Packaging & Presentation
77%
Repurchase Likelihood
More

Overview

The Salerm KAPS Filler Hair Smoothing Kit is a professional maintenance system from Salerm Cosmetics, a Spanish brand with deep roots in salon-grade haircare. Worth saying clearly upfront: this smoothing maintenance kit is not a standalone treatment — it is designed to work after a professional keratin or smoothing service, extending and preserving those results at home. The routine includes an 18 oz treatment shampoo, a 6 oz conditioning liss mask, and a steel pin tail comb for easy sectioning and application. Priced between drugstore and professional salon lines, it offers a practical middle ground for anyone looking to protect their keratin investment between appointments.

Features & Benefits

The formula at the heart of the KAPS Filler system relies on two workhorses: ceramides and keratin. Ceramides act on the outside, sealing the hair cuticle to lock in moisture and resist humidity, while keratin works internally to reinforce and rebuild the hair shaft structure. The 18 oz shampoo is gentle enough for regular use without undoing your smoothing results — a genuine concern with standard sulfate-heavy shampoos. The conditioning liss mask is applied to dry hair and left on for 10 to 15 minutes, with heat optional but recommended for deeper penetration. Since the entire kit is unscented, it works well for fragrance-sensitive users or anyone who layers other styling products.

Best For

This keratin care duo is an ideal pick for anyone who has already invested in a professional KAPs Filler treatment — or a similar keratin or Brazilian blowout service — and wants to make those results last as long as possible at home. It is especially useful for dry, frizzy, or chemically straightened hair types that tend to revert quickly without the right care routine. If you are hunting for a maintenance shampoo that will not strip your treatment prematurely, this fits the bill. Those with fragrance sensitivities will appreciate the unscented formula, and if you have been piecing together separate compatible products, the bundled format saves both time and guesswork.

User Feedback

Buyers who use this smoothing maintenance kit as intended — meaning after a professional smoothing service — generally report solid results: less frizz between salon visits, noticeably softer texture, and a longer-lasting straight finish. The shampoo earns consistent praise for being gentle without feeling watery or ineffective. The main sticking point is the mask. At 6 oz, it runs out noticeably faster than the 18 oz shampoo, which can feel lopsided if you have thick or very long hair. Several users note that applying the mask with heat delivers better results, which aligns with what the instructions recommend. On balance, repeat buyers tend to view the kit as reasonably priced for a salon-aligned home routine, though some purchase the mask separately to rebalance the ratio.

#Shampoo & Conditioner Sets
#Shampoo & Conditioner
#Hair Care
#Beauty & Personal Care

Pros

  • Ceramide and keratin combination actively seals the cuticle and rebuilds hair structure rather than just coating the surface.
  • Gentle enough for regular use without prematurely stripping a professional keratin or smoothing treatment.
  • The 18 oz shampoo offers solid volume, lasting well through extended daily use for most hair lengths.
  • Unscented formula layers easily alongside scented styling products without creating fragrance conflicts.
  • Bundled kit eliminates the guesswork of finding a shampoo and mask that are actually compatible with each other.
  • Included steel pin tail comb is a practical addition for precise sectioning and even mask distribution.
  • Mask applied to dry hair makes it easy to fit into a routine without wet-hair preparation.
  • Users consistently report softer texture and noticeably reduced frizz after incorporating this smoothing maintenance kit.
  • Mid-range pricing bridges the gap between inexpensive drugstore products and costly salon-exclusive lines.
  • Heat-optional mask application adds flexibility — effective with or without a blow-dryer or flat iron.

Cons

  • At only 6 oz, the liss mask runs out far faster than the 18 oz shampoo, creating an uneven replenishment cycle.
  • Delivers no meaningful benefit if used without a prior professional keratin or smoothing treatment.
  • Buyers with very thick or long hair will likely need to repurchase the mask separately after just a few uses.
  • Results from the mask are noticeably weaker when heat is skipped, despite being listed as optional.
  • No guidance on ideal usage frequency for the mask versus the shampoo can leave buyers guessing.
  • Offers little corrective value for severely damaged, bleached, or highly porous hair needing intensive repair.
  • The unscented formulation, while useful for some, may feel flat or unsatisfying to those who enjoy scented haircare.
  • Salerm is a niche professional brand, making in-store availability limited and replacement purchases largely online-dependent.

Ratings

Our AI rating system analyzed thousands of verified buyer reviews for the Salerm KAPS Filler Hair Smoothing Kit from markets across North America, Europe, and Latin America, actively filtering out incentivized, duplicate, and bot-generated feedback to surface what real users actually experienced. The scores below reflect both the consistent strengths and the recurring frustrations reported by buyers across a wide range of hair types and usage habits. Nothing has been softened — where the kit earns praise, the scores show it, and where genuine limitations exist, those are reflected just as transparently.

Frizz Control Effectiveness
81%
19%
Users who had already completed a professional KAPs Filler or similar keratin service reported noticeably reduced flyaways and frizz during humid weather, with results that clearly outlasted what they experienced using standard shampoos. The ceramide-driven cuticle sealing appears to be the key factor, with many buyers noting their hair stayed smoother between washes for longer than expected.
The frizz control is heavily dependent on having had a prior professional treatment — buyers who tried this system on untreated hair reported little to no improvement. A subset of users with very coarse or resistant hair also noted that results plateaued quickly and required more frequent mask applications to sustain the effect.
Shampoo Gentleness
88%
The treatment shampoo consistently earns praise for being non-stripping, which is exactly what keratin-treated hair needs in a daily cleanser. Users who had previously seen their smoothing results fade quickly with sulfate-based shampoos reported a meaningful improvement in how long their treatment held after switching, and the formula lathers modestly but cleans effectively without leaving residue.
A small number of users felt the shampoo was almost too mild, particularly those with oily scalps who needed to double-shampoo to feel fully clean. It is not designed for heavy product buildup, so buyers who rely on dry shampoo or layered styling products may find it underwhelms on days when deeper clarifying is needed.
Mask Conditioning Performance
79%
21%
On hair that has been properly prepared with a professional smoothing treatment, the liss mask delivers real softness and a noticeable reduction in mid-length dryness. Users who apply it with gentle heat — even a warm towel wrap — report a distinctly silkier finish, and the dry-hair application method helps the keratin absorb more efficiently than a standard rinse-out conditioner would.
Without heat, the mask underperforms for many users, which adds an inconvenient extra step to an otherwise quick routine. Buyers with thick or long hair also find the 6 oz size frustratingly small — a single generous application can use up nearly a third of the container, making it one of the costlier aspects of the routine to sustain consistently.
Value for Money
73%
27%
For buyers using the kit as a committed at-home maintenance routine after a professional smoothing service, the price-to-performance ratio feels reasonable compared to the cost of more frequent salon visits. The bundled format — shampoo, mask, and comb in one purchase — adds practical convenience that justifies the mid-range positioning for buyers who would otherwise need to source compatible products separately.
The value perception shifts for users who go through the mask quickly, since repurchasing it separately adds an ongoing cost that the initial kit price does not fully reflect. Buyers who expected more from the mask given its premium positioning compared to drugstore alternatives sometimes felt the visible results did not clearly outpace cheaper conditioning options they had tried before.
Ingredient Quality
86%
The ceramide and keratin pairing is substantive, not just label dressing — ceramides are scientifically supported for cuticle repair and moisture retention, while keratin fills structural gaps in chemically treated hair. Users with noticeably dry or brittle post-treatment hair reported meaningful improvements in texture and resilience after consistent use of the KAPS Filler system over several weeks.
The full ingredient list is not prominently disclosed on the product listing, making it difficult for ingredient-conscious buyers to verify the concentration or purity of the ceramide and keratin compounds used. Users with allergies or strict clean-beauty standards may need to contact the manufacturer directly for more detailed formulation transparency than the packaging provides.
Kit Completeness
76%
24%
Including a steel pin tail comb is a genuinely useful touch — it makes sectioning hair during the dry-hair mask application noticeably easier and reduces product waste from uneven distribution. First-time users especially appreciated not needing to source a compatible tool separately when starting the routine for the first time.
The kit stops short of including an application brush or gloves, which users who take the mask application seriously felt would have been more practical than a tail comb alone. There is also no printed step-by-step application guide in the box, leaving newer users to rely on online searches to understand the correct dry-hair method.
Scent Profile
77%
23%
The fragrance-free formulation is a genuine advantage for anyone layering scented serums, oils, or styling products on top, and users with fragrance sensitivities or reactive scalps praised not having to navigate potential irritation. It also made the kit easier to integrate into existing scented routines without creating competing or clashing notes.
For buyers who associate a pleasant scent with a quality haircare experience, the total absence of fragrance can make the routine feel clinical or uninspiring. A handful of users noted a faint neutral base smell from the raw ingredients in the bottle that, while not unpleasant, was unexpected from a product at this price tier.
Ease of Use
83%
The two-step routine is straightforward once you understand that the mask goes on dry hair before the wash step, not after. The included tail comb makes solo application manageable, and the 10 to 15 minute mask sit time fits naturally into a pre-shower or bath routine without requiring a major time commitment.
The dry-hair mask application trips up first-time users who assume it works like a standard rinse-out conditioner applied to wet hair. Users who misapply it on damp or wet hair consistently report weaker results, leading to early negative impressions that are rooted in application error rather than any actual shortcoming in the formula itself.
Results Longevity
74%
26%
Buyers who committed to a consistent routine — using the shampoo regularly and the mask once or twice weekly — reported that their keratin treatment results lasted measurably longer between salon visits. Several noted their hair stayed smooth and manageable for several additional weeks compared to periods when they used no dedicated maintenance routine at all.
Longevity improvements are incremental rather than dramatic, and users with active lifestyles — frequent swimming, heavy perspiration, or daily heat styling — found results faded faster regardless of how diligently they used the kit. It extends your treatment, but it cannot fully compensate for external habits that are inherently hard on chemically processed hair.
Shine Enhancement
82%
18%
Improved shine is one of the more consistent positives across buyer feedback, with users noting that their hair looked noticeably glossier and healthier after several weeks of regular use. The ceramide cuticle-sealing effect appears to be the primary driver — when light reflects more evenly off a smoother surface, the visual difference is noticeable even in everyday lighting.
The shine enhancement is most visible on darker hair tones and can be harder to perceive on very light, highlighted, or bleached hair. A few users also noted that the sheen faded faster than expected between mask applications, suggesting the effect builds cumulatively rather than persisting strongly from a single use.
Volume Ratio Balance
51%
49%
For users with short or fine hair who apply the mask sparingly, the 6 oz size can stretch across a reasonable number of applications, making the ratio between shampoo and mask feel less disproportionate in practice. Buyers in this category sometimes found both products ran out at a broadly similar pace, which made the initial kit feel more balanced.
For the majority of buyers — especially those with medium to long or thick hair — the 18 oz shampoo will outlast the 6 oz mask by a wide margin, creating an uneven replenishment cycle that quietly adds ongoing cost. This size mismatch is the single most cited practical frustration in buyer feedback and genuinely undermines the kit's long-term cost efficiency.
Treatment Compatibility
84%
Users who had undergone a range of smoothing services — including Brazilian blowouts, cysteine treatments, and cysteine-keratin hybrids — reported that this smoothing maintenance kit integrated smoothly into their post-treatment care without interfering with results. The absence of harsh sulfates and the ceramide barrier support make it broadly compatible with most professional smoothing services beyond the brand's own line.
Compatibility with non-smoothing chemical treatments — such as perms, relaxers, or bond-building services — is less clearly documented, and buyers with more complex chemical histories expressed uncertainty about whether the formula was truly the best fit for their specific situation. The brand offers limited guidance on edge cases beyond the core KAPs Filler pairing.
Packaging & Presentation
69%
31%
The bottles are functional and dispense product cleanly without excessive waste, which matters when working with a smaller-format mask where every application counts. Products arrive securely packaged and the containers are easy to handle during a wet shower environment without becoming slippery or difficult to open.
The presentation does not fully match the mid-range price positioning — the packaging feels more utilitarian than premium, and some first-time buyers noted it looked less polished in person than product imagery suggested. Usage instructions on the physical packaging are minimal, which contributes to early application mistakes particularly around the dry-hair mask method.
Repurchase Likelihood
77%
23%
Repeat buying patterns suggest that users who understand the product correctly — as a maintenance complement to a prior professional treatment rather than a standalone fix — are genuinely satisfied and return consistently. Many specifically repurchase the liss mask separately once the kit runs out, which reflects confidence in its conditioning performance as a standalone step.
Buyers who purchased expecting independent straightening results rarely repurchase, skewing overall repurchase data and adding noise to the broader satisfaction picture. Some committed repeat buyers also cited frustration with occasional stock availability gaps, noting that sourcing replacements quickly through mainstream retail channels was not always reliable.

Suitable for:

The Salerm KAPS Filler Hair Smoothing Kit is purpose-built for anyone who has already undergone a professional keratin or KAPs Filler smoothing treatment and wants to preserve those results between salon appointments. If your hair tends to be dry, frizzy, or chemically straightened, the ceramide-keratin formula addresses core maintenance needs — keeping the cuticle sealed and the hair shaft hydrated — without the risk of stripping your treatment the way a standard shampoo might. It is also a strong fit for people who prefer an unscented haircare routine, whether due to fragrance allergies, sensitivities, or simply because they layer other scented products on top. Buyers who find it tedious to hunt down individual compatible products will appreciate the bundled approach: shampoo, conditioning mask, and comb arrive together and are formulated to work as a system. At its price point, this keratin care duo slots comfortably between budget drugstore options and expensive salon-exclusive lines, making it accessible without feeling like a compromise.

Not suitable for:

The Salerm KAPS Filler Hair Smoothing Kit is the wrong choice if you are hoping it will straighten or smooth your hair on its own — it is a maintenance system, not a treatment, and buying it without a prior professional keratin service is likely to leave you disappointed. Anyone with very thick or long hair should know upfront that the 6 oz mask will run out significantly faster than the 18 oz shampoo, which means frequent separate repurchases and an unbalanced kit over time. If your hair is naturally wavy or curly and you have never had a smoothing treatment, this system will not deliver meaningful frizz control on its own. People looking for corrective, intensive repair for severely damaged, bleached, or highly porous hair may also find it underwhelming, since its function is protective maintenance rather than restoration. Finally, anyone who strongly prefers a scented haircare experience will not find it here — the unscented formula is a deliberate choice, and some users find it feels clinical or flat.

Specifications

  • Brand: Manufactured by Salerm Cosmetics, a professional-grade Spanish haircare brand with an established salon heritage.
  • Kit Contents: Includes one 18 oz KAPs Filler treatment shampoo, one 6 oz KAPs Filler liss mask, and one steel pin tail comb.
  • Shampoo Volume: The treatment shampoo is supplied in an 18 oz bottle, sized for extended regular use as a daily or frequent cleanser.
  • Mask Volume: The conditioning liss mask is supplied in a 6 oz container, intended as a periodic deep-conditioning step rather than a daily application.
  • Key Ingredients: Active formula combines ceramides, which seal the hair cuticle against moisture loss, and keratin, which reinforces the internal hair shaft structure.
  • Target Hair Type: Formulated for dry, straight, or chemically straightened hair, particularly hair that has undergone a professional keratin smoothing service.
  • Scent Profile: The entire kit is fragrance-free, making it compatible with fragrance-sensitive users and suitable for layering with scented styling products.
  • Item Form: Both the shampoo and the conditioning mask are liquid formulations.
  • Mask Application: The liss mask is applied to dry hair and left on for 10 to 15 minutes; heat is optional but recommended by the manufacturer for deeper ingredient penetration.
  • Product Purpose: Designed as a post-treatment maintenance system to extend and preserve the results of a professional keratin smoothing service, not as a standalone straightening treatment.
  • Included Tool: The steel pin tail comb is intended for precise sectioning, product distribution, and styling during the mask application step.
  • Claimed Benefits: Manufacturer-listed benefits include hydration, smoothing, enhanced shine, gentle cleansing, and repair of the hair shaft.
  • Package Weight: The complete packaged kit weighs 1.92 lbs.
  • Package Dimensions: The kit ships in a box measuring 8.82 x 8.03 x 3.62 inches.
  • Manufacturer: Salerm Cosmetics Kaps is the listed manufacturer of this kit.

Related Reviews

Zelo Smoothing Brazilian Keratin Hair Treatment Kit
Zelo Smoothing Brazilian Keratin Hair Treatment Kit
86%
88%
Effectiveness in Frizz Control
90%
Smoothing Results
85%
Ease of Application
89%
Suitability for Curly Hair
92%
Shine Enhancement
More
G.HAIR Original Formula Smoothing Keratin Treatment Kit 33.8oz
G.HAIR Original Formula Smoothing Keratin Treatment Kit 33.8oz
86%
92%
Effectiveness for Frizz Control
89%
Long-Lasting Results
85%
Ease of Application
60%
Fragrance Strength
91%
Hair Texture Improvement
More
Mamaearth Onion Oil Hair Care Kit 3-Piece
Mamaearth Onion Oil Hair Care Kit 3-Piece
77%
74%
Hair Fall Reduction
83%
Scent Experience
81%
Shampoo Performance
62%
Conditioner Moisturizing
91%
Ingredient Safety
More
KOTAMU Digital Hair Removal Wax Warmer Kit
KOTAMU Digital Hair Removal Wax Warmer Kit
80%
88%
Ease of Use
84%
Temperature Control
83%
Hair Removal Effectiveness
86%
Sensitive Skin Compatibility
91%
Value for Money
More
FHI Heat Hair Veil 1.41oz Hair Filler
FHI Heat Hair Veil 1.41oz Hair Filler
71%
88%
Ease of Application
61%
Color Accuracy
79%
Coverage Quality
74%
Fade Resistance
77%
Transfer Resistance
More
Hair Solaye Conditioner for Silky Smooth Hair Growth, 8 fl oz
Hair Solaye Conditioner for Silky Smooth Hair Growth, 8 fl oz
87%
85%
Effectiveness for Hair Growth
90%
Scent/Fragrance
88%
Texture/Feel
92%
Ease of Use
86%
Absorption/Finish
More
Nioxin Scalp & Hair Thickening System Kit for Thinning Hair - 3 Month Supply
Nioxin Scalp & Hair Thickening System Kit for Thinning Hair - 3 Month Supply
85%
87%
Effectiveness in Boosting Hair Thickness
84%
Reduction in Hair Fall
91%
Scent/Fragrance
90%
Value for Money
88%
Ease of Application
More
milk_shake Lifestyling Smoothing Hair Cream for Medium to Coarse Hair, 5.1 Fl Oz
milk_shake Lifestyling Smoothing Hair Cream for Medium to Coarse Hair, 5.1 Fl Oz
84%
88%
Effectiveness in Frizz Control
85%
Sleek and Smooth Finish
80%
Heat Protection Performance
87%
Hydration and Conditioning
90%
Lightweight Formula
More
eSalon Personal Colorist Permanent Hair Color Kit
eSalon Personal Colorist Permanent Hair Color Kit
78%
74%
Gray Coverage
63%
Color Accuracy
88%
Ingredient Quality
83%
Ease of Application
86%
Kit Completeness
More
Rida Hair Research Institute Hair Mask for Damaged Hair
Rida Hair Research Institute Hair Mask for Damaged Hair
86%
88%
Repair Effectiveness
85%
Frizz Control & Smoothness
87%
Hydration & Moisture
91%
Ease of Application
84%
Repair for Heat Damaged Hair
More

FAQ

This is one of the most common points of confusion. The Salerm KAPS Filler Hair Smoothing Kit is a maintenance system, not a standalone straightening treatment — it is designed to be used after a professional KAPs Filler or similar keratin service, helping to prolong and protect those results at home. On its own, without a prior salon treatment, it will condition and soften your hair but will not deliver the frizz control or straightening effect that a full keratin service provides.

The shampoo is gentle enough for daily or every-other-day use as your regular cleanser. The liss mask is a deeper conditioning step meant to be used less frequently — once or twice a week is a reasonable starting point depending on how dry or treated your hair is. Keep in mind that the mask comes in a 6 oz size while the shampoo is 18 oz, so rationing the mask will help both products last a more similar length of time.

Heat is listed as optional, but most users notice a real difference when they use it. Wrapping your hair with a warm towel or sitting under a hooded dryer for the 10 to 15 minute wait helps the ceramides and keratin absorb more effectively into the hair shaft. Skipping heat entirely still gives you some conditioning benefit, but the smoothing and frizz-control results tend to be less pronounced.

Probably not for long. With thick or long hair, a single application can use up a meaningful portion of that 6 oz container, so you may go through it in just a few uses while the 18 oz shampoo keeps going. It is worth budgeting to repurchase the mask separately on a regular cycle rather than expecting both products to run out at the same pace.

The kit works best as a companion to the KAPs Filler professional treatment, but its ceramide and keratin formula is designed to protect keratin-smoothed hair broadly, regardless of which brand performed the original service. The core maintenance goal — preventing cuticle damage and moisture loss — applies across most smoothing treatments. That said, if your salon recommends a specific brand's aftercare line, it is worth checking whether there are any compatibility considerations before switching.

It is not explicitly marketed for color-treated hair, but the gentle, sulfate-conscious formula and absence of harsh detergents make it a generally low-risk choice. Ceramides and keratin are common ingredients in color-safe products and are unlikely to accelerate fade. If your hair is both color-treated and keratin-smoothed, a quick check with your stylist before switching products is a sensible move.

It is less common than rinse-out masks applied to wet hair, but it is a deliberate approach in professional smoothing maintenance lines. Applying to dry hair means the ceramides and keratin reach the hair shaft without being diluted by water, which can improve how well they absorb. Just section your hair with the included comb, apply evenly from mid-lengths to ends, wait the recommended time, and rinse thoroughly.

Pretty much. There is no added perfume or masking scent in either product. Some people notice a faint neutral smell from the base ingredients, but it disappears after rinsing. If you are used to strongly scented shampoos, the transition can feel different at first — but it is genuinely useful if you layer serums, oils, or styling products that have their own fragrance.

The shampoo should be fine for regular use even on finer hair since it is a gentle cleanser. The mask, however, is richer and formulated with drier, thicker hair in mind — using too much on fine hair can weigh it down and reduce volume. If your hair is fine but keratin-treated and prone to frizz, start with a small amount and see how your hair responds before committing to a full application.

The bundled kit has a real advantage in compatibility — the shampoo and mask are formulated to work together, so you do not have to guess whether mixing products from different brands might undercut your smoothing results. The included tail comb is a small but useful bonus that you would otherwise need to source separately. From a cost standpoint, the kit's mid-range price is generally competitive with buying comparable salon-brand shampoo and mask individually, though plan to replenish the mask more often than the shampoo given the size difference.