KERATHERAPY Keratin Infused Deep Conditioning Masque 500ml

83%

Moisture & Hydration

Frizz Control

Ingredient Quality

Texture & Application

Shine Enhancement

Hair Strengthening

Scent

Rinse-Out Performance

Value for Money

Color Protection

Compatibility with Keratin Treatments

Packaging & Usability

Repurchase & Loyalty

Overview

The KERATHERAPY Keratin Infused Deep Conditioning Masque 500ml is a salon-inspired weekly treatment built for hair that has been through the wringer — think bleached, heat-damaged, or chronically frizzy strands that a regular conditioner just cannot rescue. It sits within Keratherapy's broader Moisture Collection, which includes a shampoo, conditioner, and leave-in spray, making it easy to build a consistent routine around. The formula stands out for being both sulfate-free and sodium chloride-free, which matters if you have had a professional keratin treatment or color service you want to protect. At a mid-to-premium price point, it undercuts most salon-brand masques while delivering a genuinely therapeutic experience rather than just surface shine.

Features & Benefits

The Kerabond keratin complex at the heart of this keratin masque works by reinforcing the hair shaft rather than just coating it temporarily — the difference shows up as lasting softness rather than a quick slickness that washes out by the next shampoo. Jojoba oil adds moisture in a way that feels surprisingly light, mimicking the scalp's own oils without the greasy residue some masks leave behind. Nettle root extract is the ingredient most people overlook, but it plays a real role in strengthening strands over time. Persian walnut and wheat oil contribute nourishment and shine, and the generous 500ml size means a weekly routine will not drain your supply fast.

Best For

The Keratherapy deep conditioning treatment hits its stride with chemically processed hair — if you color regularly, relax, or have had a professional smoothing service, this is the kind of weekly masque that helps protect the investment you have already made. It also works well for anyone battling persistent frizz in humid weather or with naturally coarse, dry texture. Fine to medium hair types tend to respond especially well since the formula is rich without being suffocating. Where it starts to fall short is with very thick or tightly coiled hair, which often needs a heavier layer on top to fully lock in moisture. Think of it as a precision tool, not a universal fix.

User Feedback

With a strong overall rating from hundreds of buyers, this hair repair mask earns its following through consistent real-world results rather than clever packaging. Most reviewers highlight how noticeably soft and shiny their hair feels after even one use, and the scent comes up often as a welcome bonus. Repurchase patterns suggest genuine loyalty, which is always a telling sign. That said, a subset of reviewers — typically those with thick or coily hair — report that the moisture payoff alone is not enough and that layering additional products becomes necessary. A handful also note that frizz control varies depending on hair porosity and climate conditions. Solid overall, but not without its limits.

#Deep Conditioners

#Shampoo & Conditioner

#Hair Care

#Beauty & Personal Care

Pros

Hair feels noticeably softer and looks shinier after just one use.
The sulfate-free, sodium chloride-free formula is genuinely safe for color-treated and keratin-treated hair.
Jojoba oil keeps the texture feeling light and non-greasy even on finer hair.
The 500ml size provides excellent value per application for a weekly routine.
Nettle root extract adds a strengthening angle that most competing masks skip entirely.
Works well within the broader Moisture Collection for a consistent, layered haircare routine.
Pleasant scent is a recurring point of praise among buyers — not overpowering.
Clean ingredient profile makes it a credible alternative to silicone-heavy drugstore options.
Strong repurchase rate among reviewers signals real, lasting satisfaction over time.

Cons

Not enough moisture payoff on its own for very thick, coily, or high-porosity hair types.
Results build gradually — buyers expecting an instant dramatic fix may feel underwhelmed at first.
Frizz control can vary noticeably depending on hair porosity and local humidity levels.
The price sits at the higher end of the at-home masque category, which may deter casual buyers.
The tub-style or wide-mouth packaging can make hygienic scooping awkward over time.
Not a replacement for a professional keratin smoothing treatment, despite the keratin marketing.
A 3-to-10 minute processing window requires planning — not ideal for rushed wash-day routines.
Some users find they need to pair it with a leave-in or oil to get the full moisture benefit.

Ratings

The KERATHERAPY Keratin Infused Deep Conditioning Masque 500ml scores were determined by our AI system after processing hundreds of verified global buyer reviews, with spam, bot-generated feedback, and incentivized posts actively filtered out before scoring. The analysis covers everything from real wash-day results to long-term texture improvement, and both the strengths and the frustrations are reflected honestly in every category below.

Moisture & Hydration

88%

Buyers consistently describe hair feeling noticeably softer and more pliable after the very first use, which is a strong signal for a weekly treatment. People with color-treated or heat-damaged hair in particular report that dryness and brittleness reduce meaningfully after a few weeks of regular use.

The hydration payoff drops off significantly for very thick or high-porosity hair types, where buyers often feel the masque alone is not enough to fully quench moisture needs. A subset of reviewers note they have to layer additional oils or butters on top to get results comparable to heavier salon masks.

Frizz Control

76%

24%

For fine-to-medium hair in moderate climates, the keratin complex does a respectable job of smoothing the cuticle and taming flyaways between wash days. Users in drier regions report that the masque alone provides enough frizz control to reduce daily styling effort noticeably.

In high-humidity environments, frizz control is inconsistent and often needs the support of the leave-in spray from the same collection to hold through the day. Coily and thick hair types report little to no lasting frizz reduction from this treatment used in isolation.

Ingredient Quality

91%

The sulfate-free, sodium chloride-free formula is a genuine differentiator — buyers who have previously ruined professional keratin treatments with the wrong products specifically call this out as a trustworthy option. Jojoba oil and nettle root extract add functional depth that goes beyond the filler ingredients found in many competing masks.

Some buyers with nut sensitivities flag the Persian walnut oil as a concern, and the product does not carry a dedicated allergen-free certification to address this directly. The ingredient list, while clean, lacks transparency around exact concentrations, which matters to buyers who prefer fully disclosed formulas.

Texture & Application

86%

The cream consistency spreads evenly through wet hair without needing excessive product, and most buyers describe the application process as intuitive and mess-free. It distributes well from roots to ends without clumping, which is a common frustration with thicker hair masks.

A few users with very long or very thick hair find the consistency slightly too thin to stay put during the processing window without additional wrapping. Some reviewers also note that the packaging makes it tricky to scoop out cleanly once the container is less than a quarter full.

Shine Enhancement

83%

Shine improvement is one of the most frequently mentioned positives across reviews, with buyers noting a visible difference even in natural light after a single treatment session. The wheat oil and Persian walnut combination appears to contribute a natural-looking gloss rather than the artificial, coating-style shine associated with silicone-heavy products.

The shine effect tends to be most pronounced immediately after use and can fade by the second or third day post-wash, which some buyers find underwhelming relative to the price point. Those with naturally dull hair caused by porosity issues rather than dryness see less dramatic improvement.

Hair Strengthening

74%

26%

Buyers who use the Keratherapy deep conditioning treatment consistently over four to six weeks report a reduction in breakage and snapping during combing, which points to genuine cumulative strengthening from the keratin and nettle root actives. Those recovering from over-processing or bleach damage find the reinforcement noticeable over time.

Strengthening results are slow to develop and require sustained commitment to the routine — buyers looking for a quick structural fix tend to be disappointed after one or two uses. The effect is maintenance-level rather than restorative, so severely compromised hair may need a more intensive bond-repair treatment alongside this one.

Scent

84%

The fragrance earns consistent compliments in buyer reviews, described as fresh and clean without being overpowering during the processing window. Most users appreciate that the scent does not linger heavily on the hair after rinsing, making it compatible with people who are sensitive to strong fragrance.

A small but consistent group of fragrance-sensitive buyers find the scent too noticeable during application, particularly those who prefer completely unscented haircare. There is no fragrance-free version available for buyers who need to avoid all added scent.

Rinse-Out Performance

89%

The masque rinses out cleanly without leaving a heavy residue or waxy film, which is a common pain point with richer hair masks. Buyers with fine hair specifically note that their hair does not feel weighed down or limp after rinsing, which is a meaningful advantage over denser competing products.

On extremely thick or porous hair, some users feel too much of the product washes away during rinsing and wish the formula had stronger staying power post-treatment. A minority of reviewers report a slight residue if the masque is not rinsed thoroughly enough, particularly at the nape of the neck.

Value for Money

77%

23%

At 500ml with a generous enough consistency that a little goes a long way for fine and medium hair, most buyers get several months of weekly use out of a single container, which helps justify the mid-to-premium price point. Compared to salon-brand equivalents sold in professional supply stores, this hair repair mask sits at a notably friendlier price per milliliter.

For buyers with thick or very long hair who need more product per application, the cost-per-use calculation is less favorable and the container can run out faster than expected. Those who need to layer additional products on top to achieve full results effectively raise the total cost of their routine further.

Color Protection

92%

The salt-free and sulfate-free formula is among the most consistently praised aspects by color-treated hair buyers, many of whom report their dye lasting noticeably longer between salon visits after switching to this masque. It is one of the few at-home treatments that checks both boxes cleanly, making it a reliable choice for anyone maintaining vivid or permanent color.

The product does not actively enhance or refresh color tone the way some color-depositing masks do, so buyers hoping for added vibrancy alongside conditioning will need a separate product. There is also no UV-protection claim, which matters for color longevity in buyers who spend significant time outdoors.

Compatibility with Keratin Treatments

93%

Buyers who have had professional Brazilian blowouts or smoothing keratin services specifically seek out sodium chloride-free products to avoid prematurely breaking down their treatment, and this masque satisfies that requirement reliably. Several reviewers report that using it consistently helped extend their salon results by weeks compared to their previous haircare routine.

It is worth being clear that this is a conditioning masque, not a top-up keratin treatment — it preserves and supports but does not replenish the bond-altering chemistry of a professional service. Buyers who expect it to actively restore faded smoothing results between appointments will find that expectation unmet.

Packaging & Usability

68%

32%

The tall, slim container stores conveniently in most shower caddies or bathroom shelves without taking up excessive space. The wide opening makes it easy to access the product during the early-to-mid life of the container.

Getting the last quarter of the product out cleanly is a recurring frustration — the narrow base and rigid container make scooping awkward, and buyers report wasting a noticeable amount of product. There is no pump or spatula included, which feels like a missed opportunity for a mid-to-premium priced item.

Repurchase & Loyalty

81%

19%

Repurchase behavior among buyers is a strong indicator here — a notable share of reviews come from people explicitly stating they are buying the masque for the second, third, or fourth time, which reflects genuine ongoing satisfaction. The loyalty is particularly concentrated among color-treated and keratin-treatment customers who struggle to find clean-formula alternatives that perform at this level.

Repurchase rates are lower among buyers with coily or thick hair, where the unmet moisture expectations from the first purchase tend to drive them toward heavier alternatives. A portion of non-repurchasers cite the price as the tipping point when they feel results are only moderate for their specific hair type.

Suitable for:

The KERATHERAPY Keratin Infused Deep Conditioning Masque 500ml is a strong fit for anyone whose hair has taken a beating from chemical services, regular heat styling, or environmental damage. If you color your hair every few weeks, get professional keratin or smoothing treatments, or simply live somewhere humid where frizz is a constant battle, this is the kind of weekly ritual that can genuinely make a difference over time. It works particularly well for fine-to-medium hair that craves deep moisture but tends to go limp under heavy product — the formula is rich without being suffocating. People looking to step away from silicone-loaded drugstore masks in favor of a cleaner ingredient list will also find this a natural upgrade. Because it is sodium chloride-free, it is one of the safer options for anyone trying to extend the life of a professional smoothing treatment.

Not suitable for:

The KERATHERAPY Keratin Infused Deep Conditioning Masque 500ml is unlikely to fully satisfy those with very thick, coily, or high-porosity hair that needs an intense moisture load — reviewers with that hair profile often report needing to layer heavier butters or oils on top to get the results they are after. It is also worth being clear that this is not a substitute for a professional keratin smoothing treatment; the keratin here conditions and reinforces, but it will not chemically relax or permanently tame frizz. Budget-conscious shoppers might find the price hard to justify if they are used to drugstore masks, particularly since the results, while real, tend to build gradually with consistent use rather than producing a dramatic overnight transformation. Those expecting a shortcut for severe damage may also be disappointed — this is a maintenance and repair tool, not a rescue treatment for extremely compromised hair.

Specifications

Volume: Each container holds 500ml (16.9 fl. oz.) of product, providing enough for several months of weekly treatments depending on hair length and thickness.
Product Form: The masque has a liquid-cream consistency that spreads evenly through wet hair without requiring significant emulsification.
Key Ingredient: The formula is built around Kerabond, a proprietary keratin complex designed to reinforce and condition the hair shaft with repeated use.
Active Ingredients: Additional actives include jojoba oil, nettle root extract, Persian walnut, and wheat oil, each contributing moisture, strength, or shine.
Formula Type: The formula is sulfate-free and sodium chloride-free, making it compatible with color-treated hair and post-professional keratin treatments.
Hair Type: Formulated primarily for dry, damaged, or chemically processed hair, with best results reported on fine-to-medium hair textures.
Color Safe: The sulfate-free and salt-free composition means it will not strip artificial color or fade dye from treated hair.
Application Method: Apply to hair after shampooing, leave on for 3 to 10 minutes depending on the level of conditioning needed, then rinse thoroughly.
Use Frequency: Designed as a weekly or bi-weekly deep treatment rather than a daily or rinse-out conditioner.
Item Weight: The filled container weighs approximately 1.1 pounds, making it practical for bathroom storage but less ideal for travel.
Dimensions: The container measures 2.67 x 2.5 x 8.5 inches, fitting easily on standard bathroom shelves or in shower caddies.
Product Line: This masque is part of the Keratherapy Moisture Collection, which also includes a matching shampoo, conditioner, and leave-in spray.
Free From: The formula contains no sulfates and no sodium chloride, two ingredients that are known to compromise keratin-treated or color-processed hair.
Manufacturer: Made by Keratherapy, a brand focused on keratin-based professional and at-home haircare products.
Model Number: The manufacturer item model number is 6480, and the product ASIN on Amazon is B07MN8VTT2.
Market Rank: At the time of writing, this masque ranked #245 in the Deep Hair Conditioners category on Amazon, reflecting strong ongoing demand.

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FAQ

It is designed as a weekly or bi-weekly deep treatment, not an everyday conditioner. Using it too frequently is unlikely to cause harm, but you may find it unnecessary — a regular rinse-out conditioner on off-days is the better approach for most hair types.

Yes, and it is actually a smart pairing. The formula is sodium chloride-free, which is the key requirement for maintaining a professional keratin service since salt is known to break down the treatment faster. Just make sure you wait the recommended period after your salon appointment before washing your hair at all.

The standard guidance is 3 to 10 minutes after shampooing. If your hair is particularly dry or damaged, leaving it on closer to the 10-minute mark will give the keratin complex and oils more time to absorb. There is no real benefit to going beyond that window for most hair types.

Honestly, it may not be sufficient on its own. This keratin masque works best on fine-to-medium textures that need moisture without weight. If your hair is thick and coily with high porosity, you will likely need to layer a heavier butter or oil on top to fully seal in moisture after rinsing.

No, this is a rinse-out treatment, not a leave-in or heat protectant. You apply it to wet hair, wait, rinse, and then style as normal. If you need heat protection, use a dedicated heat protectant spray after rinsing this out.

The Keratherapy deep conditioning treatment does contribute to frizz reduction by smoothing the hair cuticle and adding lasting moisture, but the results vary depending on your hair porosity and local humidity. Users in very humid climates often find that pairing it with the leave-in spray from the same collection gives noticeably better frizz control.

The formula is free from sulfates and harsh salts, which makes it gentler than many conventional masks. That said, it contains plant-derived actives like nettle root extract and walnut oil that could potentially irritate sensitive scalps or trigger reactions in people with nut allergies. When in doubt, do a patch test first or consult a dermatologist.

For shoulder-length hair, a generous tablespoon-sized amount is usually enough. At that rate, and used once a week, a 500ml container can last anywhere from three to five months. Longer or thicker hair will go through it faster, of course.

It is formulated for post-shampoo application on wet hair, and that is where it performs best. Some people do apply deep conditioning masks as pre-wash treatments on dry hair, and while it is unlikely to cause damage, you may not get the same level of absorption or result that the product was optimized for.

The scent is consistently described as pleasant and not overpowering — a clean, lightly floral or fresh tone that most users enjoy during the treatment. After rinsing, most of the fragrance washes out, so if you are sensitive to scent, it should not be an issue in day-to-day wear.