The INKEY List Peptide Moisturizer Review

BeautyBrief™

Brand

The INKEY List

Product

Peptide Moisturizer

Claims check

You get a humectant-and-emollient cream with two identified peptide solutions, while the percentages do not establish exact peptide concentrations or clinical wrinkle correction.

Shopper fit

  • Dry
  • Normal
  • Combination
  • Oily
  • Sensitive

Formula flags

  • None identified

Shopper preferences

  • Vegan
  • Cruelty-Free
  • Non-Comedogenic

Key ingredients

GlycerinProvides core humectant support for daily hydration.
BetaineAdds water-binding and conditioning support within the lightweight cream base.
Shea ButterAdds emollience and helps reinforce the dry-skin fit.
Acetyl Hexapeptide-37Forms the active peptide in the 1% Hydrating Peptide Solution and supports the hydration-and-barrier story.
Pentapeptide-48Forms the peptide component of the 2% Royal Epigen P5 blend and supports the tone and visible-aging positioning.

Price tier

$ Budget

Value check

At the Budget tier, you pay for everyday hydration with two peptide blends rather than measured wrinkle-treatment performance.

Where to buy

We may earn a commission through these links at no additional cost to you. This does not affect our BeautyBrief.

Bottom line

If you want a light moisturizer with added peptides, this is a practical Budget option. If clinical wrinkle outcomes drive your purchase, compare a more directly tested treatment.

What is Shopper Fit?

Shopper Fit shows who The Beauty Briefing finds the product is reasonably suited for after reviewing the complete formula or product design, product format, expected performance, directions, tolerability, usability, and available evidence.

Depending on the product category, Shopper Fit may reflect factors such as skin type, hair or scalp characteristics, product needs, routine compatibility, sensitivity, experience level, or practical use considerations.

Shopper Fit is BB's editorial product-fit assessment, not a copy of the brand's marketing. It is not a diagnosis, a guarantee of results or tolerance, or a claim that the product is suitable for everyone.

What are Shopper Preferences?

Shopper Preferences are product attributes The Beauty Briefing has enough evidence to treat as established for the exact product. A brand statement, badge, or retailer claim alone is not enough.

Vegan
BB found sufficient documentation to verify the vegan claim within the documented product scope.
Cruelty-Free
BB found sufficient documentation to verify the cruelty-free claim within the scope of the evidence reviewed.
Non-Comedogenic
BB found sufficient product-specific evidence or documentation to support the non-comedogenic claim. A brand claim by itself does not qualify.
Dermatologist-Tested
BB verified documentation showing the exact product was tested with dermatologist involvement. This does not mean dermatologist-recommended.
Ophthalmologist-Tested
BB verified documentation showing the exact product was tested with ophthalmologist involvement.
Hypoallergenic
BB found sufficient product-specific evidence or documentation to support the hypoallergenic claim. It does not guarantee that no shopper will react.
None Found
BB did not find sufficient evidence to verify any of the controlled Shopper Preferences for the exact product.

Brand marketing tells BB what to investigate. BeautyBrief tells the shopper what BB has established.

What are Formula Flags?

Formula Flags identify characteristics of a product's formula that materially affect shopper fit, tolerability, routine compatibility, or use. A flag does not mean an ingredient is bad or that the product is unsafe. It highlights something worth knowing before you buy.

Fragrance
Added fragrance or parfum that materially affects shopper fit or tolerability.
Essential oils
Essential oils that are relevant to fragrance exposure, sensitivity, or use.
Drying alcohols
Volatile alcohols at a level that materially affects feel, dryness, or tolerability.
Retinoids
Retinoid actives that affect routine compatibility, tolerability, or use.
Exfoliating acids
Exfoliating acids such as AHAs, BHAs, or PHAs at a functionally relevant level.
Comedogenic concerns
Formula characteristics that warrant additional consideration for breakout-prone shoppers.
Sulfates
Sulfate cleansing agents that materially affect cleansing strength, skin or hair feel, or shopper fit.
Silicones
Silicones that materially affect texture, finish, or shopper fit.
Added color
Added colorants that materially affect the finished formula or shopper use.
Other
Another formula characteristic materially affects shopper fit or use.
None identified
No defined Formula Flags materially affect shopper fit or use.

Formula Flags are informational. They are not a list of ingredients everyone should avoid.

If you want a lightweight daily cream with peptide support rather than a dedicated wrinkle treatment, The INKEY List Peptide Moisturizer gives you a Budget formula with glycerin, betaine, shea butter, Acetyl Hexapeptide-37, and Pentapeptide-48.

The moisturizing base is the most dependable part of the formula. The two peptide technologies add useful differentiation, but the current public page still does not publish finished-product clinical methodology for a defined wrinkle-reduction endpoint.

Copy of Beauty Briefing Verdict 14

What it claims

The INKEY List markets Peptide Moisturizer as a lightweight, fast-absorbing cream with a 2% Royal Epigen P5 blend and a 1% Hydrating Peptide Solution. The brand identifies the actual peptide ingredients as pentapeptide-48 and acetyl hexapeptide-37, respectively, and confirms vegan, cruelty-free and non-comedogenic positioning.[1]

The stated percentages describe branded ingredient solutions, not the concentration of each pure peptide. The public page does not provide a detailed randomized trial proving a defined wrinkle reduction from this cream.

Claims vs. formula

Glycerin and betaine support water binding, while caprylic/capric triglyceride, alkyl benzoate, cetearyl alcohol and shea butter help soften skin. Established research on glycerol explains the hydration mechanism, though it did not test this product.[2]

The two peptides are present, but the public blend percentages cannot establish their actual separate doses or clinical contributions. The formula supports everyday moisturizing more directly than it establishes biological age reversal or an effect comparable to dedicated wrinkle treatments.

Ingredients that matter

Glycerin and betaine contribute water-binding support; peptides add a secondary appearance-related feature. The fatty and emollient base affects actual comfort more than the marketing names of the peptide blends.

The formula contains benzyl alcohol as a preservative-related component, not evidence of a perfumed cream.

Close-up of glycerin dropper and test tube with glycerin.

Glycerin

If your skin feels dry or tight, glycerin helps your skin hold moisture. You don't need a high percentage or a separate serum when your moisturizer already works well.

Read the IngredientBrief
Betaine

Betaine

Betaine is a well-established humectant and skin-conditioning ingredient that adds lightweight moisture support. It is useful but replaceable, and it should not be confused with similarly named betaine surfactants or…

Read the IngredientBrief
Shea Butter

Shea Butter

Shea butter is a well-established emollient and occlusive used to soften dry-feeling skin and add richness to moisturizers. Its value depends on the complete formula, not the ingredient name alone.

Read the IngredientBrief
Close-up of transparent peptide capsules for skincare products.

Peptides

If fine lines are your concern, some peptide formulas have human evidence. Check the named peptide and finished-product testing; you don't need a separate serum when your routine already meets…

Read the IngredientBrief

What to expect in the short term

You get a lightweight, non-sticky cream that layers easily under sunscreen or makeup and gives you straightforward moisture and softness.

What to expect over time

The most dependable ongoing benefits are maintained hydration and barrier comfort. The peptide system adds plausible support for smoother, more even-looking skin, but this should not be treated as a treatment-level wrinkle claim.

Who it fits

This makes the most sense if your skin is dry, normal, combination, oily, or sensitive and you want a lighter cream with peptide support.

Compare before you buy

Choose Peptide Moisturizer when you want a lightweight daily cream with current Non-Comedogenic, Vegan, and Cruelty-Free support plus a clearly identified dual-peptide system.

Choose Bio-Active Ceramide Moisturizer when richer barrier support and a stronger finished-product evidence package matter more.

Final Assessment

The INKEY List Peptide Moisturizer provides sensible Budget value for a moisturizing cream with two clearly identified peptide technologies. Choose it for routine comfort and formulation convenience, not because the 2% and 1% solution figures prove finished-product wrinkle correction.

Last reviewed: October 2026

Sources

  1. Brand official U.S. product documentation, INCI and exact-product claims. Official page. Accessed October 15, 2026.

    Return to citation.

  2. Fluhr et al., Glycerol and the skin (2008). Independent ingredient/formulation research, not testing of this finished product. Read research.

    Return to citation.

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