Nexxus Color Assure Shampoo Conditioner Set 33.8oz

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74%
26%
88%
Color Protection
84%
Moisturizing Effect
83%
Ingredient Quality
79%
Hair Strengthening
76%
Value for Money
67%
Lather & Cleansing
63%
Conditioner Rinse-Out
54%
Suitability for Fine Hair
61%
Fragrance
58%
Buildup Over Time
72%
Packaging & Bottle Design
81%
Performance Across Color Types
86%
Ease of Use
77%
Availability & Reorder Experience
More

Overview

The Nexxus Color Assure Shampoo Conditioner Set 33.8oz is a salon-originated hair care duo built specifically for people who dye, highlight, or chemically treat their hair. Nexxus has long been a professional-grade brand, rooted in salon science and later refined through Unilever's research infrastructure. The generous bottle size makes this a practical pick for anyone who washes their hair several times a week and wants fewer reorders. At its core, the set is designed to solve a frustratingly common problem: color that looks vibrant on day one but fades noticeably within weeks. The ProteinFusion blend is what Nexxus leans on most heavily here, and it is worth understanding what that actually means before you buy.

Features & Benefits

The heart of this color-care duo is the ProteinFusion blend, which combines Elastin Protein and Quinoa to help reinforce the hair structure after coloring — a process that inevitably weakens the hair shaft. Elastin supports elasticity and resilience, while Quinoa coats and strengthens from the outside in. The conditioner is designed to form a protective layer around each strand, helping seal in proteins that coloring strips away. Nexxus markets the shampoo as delivering color vibrancy for up to 40 washes — roughly two to three months for someone washing their hair four times a week. Both products are formaldehyde-free, which matters to anyone paying close attention to what goes on their scalp daily.

Best For

The Nexxus Color Assure set is most obviously suited for people who color their hair regularly — whether that means box dye at home, highlights, or full bleach treatments. If your color tends to look great the first week and then quickly turns brassy or dull, this shampoo and conditioner pair addresses exactly that pattern. The large 33.8oz bottles are a practical advantage for frequent washers who hate running out mid-month. People dealing with dry, brittle, or protein-depleted hair from repeated chemical processing will likely get the most out of the conditioning formula. If you are currently using a standard everyday shampoo not designed for colored hair, switching to a color-safe system like this one tends to make a noticeable difference fairly quickly.

User Feedback

People who use this color-care duo regularly tend to highlight three things most: how much softer their hair feels, how well their color holds between salon visits, and how long the bottles actually last. That last point comes up a lot — the size is genuinely appreciated. On the flip side, fine-haired users fairly consistently mention that the conditioner can feel heavy, sometimes leaving hair looking flat or slightly weighed down. Scent is another dividing line — some find it pleasant, others less so, which is worth knowing if you are sensitive to fragrance. There are also a handful of reviews mentioning buildup over time with frequent use, suggesting that an occasional clarifying shampoo might be a smart addition to the routine.

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

Pros

  • Color stays noticeably more vibrant between dye sessions compared to standard drugstore shampoos.
  • The ProteinFusion blend with Elastin Protein and Quinoa actively works to strengthen chemically treated strands.
  • Each bottle is 33.8oz, so you get a genuinely long-lasting supply without frequent repurchasing.
  • Hair feels softer and more manageable after consistent use, especially for bleach-damaged hair.
  • Formaldehyde-free formula is a real plus for anyone mindful of what they put on their scalp.
  • Works across a range of color types — blondes, brunettes, and redheads all report solid results.
  • Shampoo and conditioner are designed as a matched system, so they actually complement each other well.
  • Ranked among the top options in its category, which reflects consistent satisfaction among a wide user base.

Cons

  • The conditioner can feel heavy on fine or thin hair, sometimes leaving it flat or limp after drying.
  • Scent is polarizing — some users enjoy it, but others find it too strong or artificial.
  • With daily washing, some users report buildup over time that requires periodic clarifying treatment.
  • The shampoo lather is thinner than many drugstore alternatives, which takes some getting used to.
  • Buying both bottles together means a higher upfront cost, even if the long-term value works out.
  • The conditioner takes a bit of effort to rinse out fully, especially on thicker or longer hair.
  • Not ideal as a standalone purchase if you only need one product — the set format is the default option.
  • Results on very heavily bleached or over-processed hair may be more modest than the marketing suggests.

Ratings

The Nexxus Color Assure Shampoo Conditioner Set 33.8oz has been scored below using AI analysis of verified global buyer reviews, with spam, bot-generated, and incentivized feedback actively filtered out before scoring. Every category reflects the honest distribution of real user experiences — not just the highlights. Where buyers consistently praised something, the score climbs; where recurring frustrations surfaced, they are reflected just as transparently.

Color Protection
88%
This is the category where the Nexxus Color Assure set earns its strongest marks. Users across blonde, brunette, and red hair types consistently report that their color holds noticeably longer between salon visits compared to standard shampoos — several weeks of difference in some cases.
The improvement is real but not dramatic for everyone. Heavily bleached or over-processed hair tends to show more modest gains, and a handful of users with very porous hair found that color still faded faster than the 40-wash claim implied.
Moisturizing Effect
84%
For dry or chemically stressed hair, the hydration payoff is one of the most praised aspects of this shampoo and conditioner pair. Users who had been dealing with brittle, rough strands post-coloring noticed a clear improvement in softness and manageability within the first few weeks of regular use.
The moisturizing strength that benefits dry hair can be a liability for those with finer or naturally oily hair. Some users reported that their roots felt heavier than usual, and the conditioner in particular required careful application to avoid a greasy look at the scalp.
Ingredient Quality
83%
The ProteinFusion blend featuring Elastin Protein and Quinoa stands out as a thoughtfully chosen ingredient combination for color-treated hair. Elastin supports the hair's structural flexibility while Quinoa provides external coating benefits — buyers with a background in hair science tend to view this formula favorably.
While the hero ingredients are solid, the full ingredient list still includes some synthetic compounds that more ingredient-conscious buyers flag as less clean than they would prefer. The formula is formaldehyde-free, but it is not positioned as a fully natural or organic product.
Hair Strengthening
79%
21%
Users dealing with breakage from repeated coloring or heat styling report a gradual but noticeable reduction in snapping and shedding after several weeks with this color-care duo. The protein component in the formula appears to contribute meaningfully to rebuilding resilience over time.
The strengthening effect is cumulative rather than immediate, which disappoints some buyers expecting faster results. Those with severe damage from long-term bleaching tend to need a more intensive treatment product alongside this set to see meaningful structural recovery.
Value for Money
76%
24%
The oversized 33.8 oz bottles stretch the investment considerably further than standard-sized alternatives, which most buyers factor in when assessing cost. Regular users who wash their hair frequently find the per-wash cost quite reasonable for a professional-grade formulation.
The upfront cost of buying both bottles together is a sticking point for some shoppers, especially when comparing against single drugstore bottles. Those who only need one product in the pair feel the bundled format forces spending on something they may not use at the same rate.
Lather & Cleansing
67%
33%
The shampoo cleanses effectively without stripping color — which is exactly its core job — and most users feel their hair and scalp are genuinely clean after washing. For those coming from harsh, sulfate-heavy shampoos, the gentler cleanse feels like a noticeable and welcome change.
The lather is thinner and less foamy than many mainstream shampoos, which is a deliberate formulation choice but one that still catches buyers off guard. A segment of users equates lather volume with cleansing power and finds the experience unsatisfying, even when hair comes out clean.
Conditioner Rinse-Out
63%
37%
When used in the right amount and left on for a minute or two, the conditioner delivers a smooth, detangled result that users with medium to thick hair find satisfying. Longer-haired buyers appreciate that the slip it provides makes combing through wet hair significantly easier.
Multiple users flag that the conditioner requires thorough rinsing — more so than lighter formulas — and that residue is a real possibility if you rush the process. Fine-haired buyers are the most affected, sometimes experiencing a weighted, slightly sticky feel if they do not rinse completely.
Suitability for Fine Hair
54%
46%
Some fine-haired users do make it work by using a very small amount of conditioner focused only on the ends, effectively treating it more like a leave-on treatment than a standard rinse-out product. For those willing to adjust their application technique, results can still be positive.
This is the most consistently mentioned pain point in feedback from fine-haired buyers. The conditioner formula is rich enough that many find it simply too heavy for their hair type, causing flatness and reduced volume regardless of the amount used. This is a legitimate and recurring limitation.
Fragrance
61%
39%
Many buyers enjoy the scent, describing it as fresh and clean with a pleasant floral undertone that lingers lightly after washing. For this group, the fragrance adds to the overall experience and feels consistent with a professional haircare product.
Fragrance is one of the more divisive aspects of this shampoo and conditioner pair. A notable portion of reviewers finds the scent too strong or slightly artificial, and those with fragrance sensitivities report it as a dealbreaker. There is no unscented version available within this line.
Buildup Over Time
58%
42%
For users who wash their hair three to four times per week and periodically use a clarifying shampoo, buildup is rarely reported as a serious issue. The formula performs consistently across weeks of use for this group without noticeable residue accumulation.
Daily washers and those who skip clarifying treatments tend to notice a gradual heaviness or dullness building up over several weeks of exclusive use. This is not unusual for protein-rich conditioners, but it does require the added step of rotating in a clarifying product — something not all buyers anticipate needing.
Packaging & Bottle Design
72%
28%
The large bottles are sturdy and sit stably on shower shelves without tipping, which sounds minor but matters when you are dealing with 33.8 oz of liquid. The flip caps are functional and dispensing is easy to control without over-pumping product.
The bottles are bulky enough that they can be awkward in smaller shower caddies or medicine cabinets. Some users also note that the dispensing opening is wide enough that it is easy to accidentally squeeze out more product than intended, particularly early in use when the bottle is full.
Performance Across Color Types
81%
19%
The formula does not cater to a single hair color type, and buyer feedback reflects this breadth well. Brunettes, redheads, and blondes all report benefits, with color longevity and shine being the most commonly mentioned improvements across the board.
Platinum blonde and heavily lightened hair tends to get the least dramatic color-retention benefit, likely because that level of processing strips hair to a degree that requires more intensive repair than this formula is designed to provide on its own.
Ease of Use
86%
There is no complicated routine involved — shampoo, rinse, condition, rinse, and you are done. Buyers who are switching from a different product find the transition straightforward, and the format works seamlessly into any standard shower routine without additional steps.
The one adjustment most users need to make is recalibrating how much conditioner to use, since over-applying is easy and leads to the heaviness complaints common in feedback. The learning curve is minor, but it does take a wash or two to dial in the right amount.
Availability & Reorder Experience
77%
23%
The product is widely stocked and easy to reorder, which matters for a daily-use item that runs out over time. Subscribe-and-save options and consistent availability make it a low-friction part of a regular haircare routine for loyal users.
Because it is sold as a set, buyers who run out of one bottle before the other are locked into buying both again. The shampoo and conditioner rarely deplete at identical rates, which means some buyers end up with a surplus of one while waiting on the other.

Suitable for:

The Nexxus Color Assure Shampoo Conditioner Set 33.8oz is a strong match for anyone who colors their hair regularly and has grown frustrated watching that fresh-from-the-salon vibrancy disappear within a few weeks. It is especially practical for people who wash their hair frequently — the oversized bottles mean you are not constantly reordering, and the per-wash cost works out reasonably well for heavy users. Those dealing with dry, brittle, or protein-depleted hair from repeated bleaching or chemical processing will likely appreciate the conditioning formula most, as it is built to replenish what coloring takes away. If you are currently using a standard shampoo that was never designed with colored hair in mind, this shampoo and conditioner pair represents a meaningful and well-structured upgrade. It also suits buyers who want a formaldehyde-free option without having to hunt through specialty retailers.

Not suitable for:

The Nexxus Color Assure Shampoo Conditioner Set 33.8oz is a less obvious fit for people with fine or low-density hair, since the conditioner formula is on the richer side and can weigh strands down with regular use. If your hair is naturally oily at the roots, the moisturizing focus of this color-care duo may compound that issue rather than help it. People who have not colored their hair and are simply looking for a general-purpose shampoo will not get much additional benefit from a formula specifically engineered around color retention — there are better-matched options for untreated hair. Those with strong fragrance sensitivities should know going in that the scent is noticeable and not universally loved. Anyone prone to product buildup who washes their hair every day may also find they need to rotate in a clarifying shampoo periodically to keep things balanced.

Specifications

  • Volume: Each bottle contains 33.8 oz (1 liter), and the set includes two bottles — one shampoo and one conditioner.
  • Format: Sold as a matched two-piece set: one Color Assure shampoo and one Color Assure conditioner.
  • Hair Type: Formulated specifically for color-treated, highlighted, or chemically processed hair.
  • Key Ingredients: The formula features Elastin Protein and Quinoa as the core active components within the ProteinFusion blend.
  • Formulation System: Both products use Nexxus ProteinFusion technology, designed to work as a coordinated system rather than independently.
  • Chemical Exclusions: The formula is free from formaldehyde, making it a cleaner option for users mindful of scalp and hair health.
  • Item Form: Both the shampoo and conditioner are liquid formulas dispensed from standard flip-cap bottles.
  • Color Retention Claim: Nexxus states the shampoo helps maintain color vibrancy for up to 40 washes under recommended usage conditions.
  • Primary Benefits: The set targets color protection, moisture retention, anti-breakage support, and overall strengthening of chemically treated strands.
  • Package Dimensions: The combined package measures 13.5 x 8.6 x 3.4 inches, suitable for standard bathroom storage or shower shelving.
  • Combined Weight: The two-bottle set weighs approximately 4.23 pounds when fully packaged for shipping.
  • Manufacturer: Produced and distributed by Unilever, a global consumer goods company with an extensive professional haircare portfolio.
  • Brand Heritage: Nexxus was originally developed in salon environments and has since been refined using laboratory-grade ingredient science.
  • Conditioner Action: The conditioner is formulated to form a protective layer around each hair fiber, helping to seal in proteins lost during coloring.
  • Discontinuation Status: As of the most recent product listing data, this item is confirmed as not discontinued by the manufacturer.
  • Sales Rank: This set holds a Best Sellers Rank of approximately #60 in the Shampoo and Conditioner Sets category on Amazon.
  • Model Number: The manufacturer model number for this set is 10605592008150.
  • ASIN: The Amazon Standard Identification Number for this listing is B00C5AHTAC.

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FAQ

Technically you can use just one, but the formulas are designed to complement each other — the shampoo cleanses without stripping color, and the conditioner follows up by sealing the hair fiber. Using both tends to produce noticeably better results than pairing either one with a different brand.

This is a genuinely common concern, and it is worth taking seriously. The conditioner in this color-care duo is on the richer side, and a number of fine-haired users have reported that it can make their hair feel flat or limp. If your hair is fine, you might try using a smaller amount and focusing it on the mid-lengths and ends rather than applying it root to tip.

If you wash your hair every other day, 40 washes is roughly two to two and a half months of use. It is a marketing benchmark rather than a guarantee, and results will vary depending on your hair porosity, water hardness, and how vibrant your color was to begin with. Most users find that color does hold noticeably better compared to non-color-safe shampoos, even if 40 washes feels like an idealized figure.

The standard version of the Color Assure shampoo included in this set is not sulfate-free. Nexxus does offer a separate sulfate-free variant within the Color Assure line, but that is a different product. If sulfate-free is a hard requirement for you, it is worth double-checking the specific variant before purchasing.

Yes, this shampoo and conditioner pair is not toned or tinted, so it works across all color types — brunettes, blondes, redheads, and everything in between. It is focused on preserving vibrancy and moisture rather than altering or enhancing a specific tone, which makes it broadly compatible.

At 33.8 oz per bottle, most people who wash their hair four to five times a week report getting two to three months out of each bottle. If you have longer or thicker hair and use more product per wash, expect closer to six to eight weeks per bottle.

Some users do report buildup over time, particularly with frequent daily washing. A simple fix is to use a gentle clarifying shampoo once every week or two to reset the scalp and hair, then return to the color-care duo for your regular washes. This approach tends to keep buildup from becoming an issue.

The formula is free from formaldehyde and is gentle enough for most chemically treated hair, including keratin-treated hair. That said, if your keratin treatment came with specific product restrictions from your stylist, it is worth checking those guidelines first, as some treatments require sulfate-free or bond-safe products specifically.

The gap that comes up most consistently in user feedback is moisturizing depth and color longevity. Standard drugstore color-safe shampoos tend to protect color passably but do less to replenish protein or moisture lost during coloring. The Nexxus formula, with its ProteinFusion blend, does seem to offer a step up in terms of hair feel and color holding power, though how dramatic that difference feels will depend on how damaged or dry your hair already is.

The scent is noticeably present — it is a clean, somewhat floral and fresh fragrance that most users find pleasant, though opinions genuinely vary. A minority of reviewers find it too strong or slightly artificial. If you are sensitive to fragrance, it is a factor worth knowing about upfront, as it is not a lightly scented product.