The INKEY List Peptide Moisturizer — Efficacy 3.7/5.0, Safety 4.5/5.0 | DemythSkin
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[ DemythSkin Verdict ]
The INKEY List Peptide Moisturizer
The INKEY List

The INKEY List Peptide Moisturizer

MoisturizerHydration
Efficacy
Basic
3.7 / 5.0
Safety
Safe
4.5 / 5.0
System Verdict
A solid moisturizer, but the “peptide” story does more marketing than heavy lifting. The efficacy score is driven mainly by a well-built hydrating base—glycerin, betaine, butylene glycol, emollients, and shea butter—plus a supportive barrier-friendly lipid system; the peptides are present at the end of the list, so they are likely low-dose support ingredients rather than the main functional engine. There is no evidence here of a strong treatment-level anti-aging active, and the formula looks better for hydration and comfort than for meaningful wrinkle correction.
Active Ingredients Detected
A Tier: Good BasicsProven Results
GlycerinBetaineButyrospermum Parkii (Shea) ButterTocopheryl Acetate
B Tier: Supporting IngredientsPromising Ingredients
Phenethyl AlcoholAcetyl Hexapeptide-37MaltodextrinPentapeptide-48
What Each Ingredient Does
Aqua (Water/Eau)
solvent, formula base
Caprylic/Capric Triglyceride
light emollient, skin feel
Glycerin
humectant, water binder
C12-15 Alkyl Benzoate
emollient, slip enhancer
Cetearyl Alcohol
fatty alcohol, texture builder
Glyceryl Stearate SE
emulsifier, consistency agent
Betaine
humectant, osmolyte
Butylene Glycol
humectant, solvent
Phenoxyethanol
preservative
Benzyl Alcohol
preservative, solvent
Carbomer
gel thickener
Butyrospermum Parkii (Shea) Butter
rich emollient, occlusive
Sodium Stearoyl Glutamate
emulsifier, stabilizer
Sodium Hydroxide
pH adjuster
Ethylhexylglycerin
preservative booster
Sodium Gluconate
chelator, stabilizer
Tocopheryl Acetate
antioxidant, skin conditioning
Dehydroacetic Acid
preservative
Hydrogenated Lecithin
lipid emulsifier
Phenethyl Alcohol
preservative, solvent
Acetyl Hexapeptide-37
peptide active
Maltodextrin
carrier, stabilizer
Pentapeptide-48
peptide active
Full Ingredient List (INCI)

Aqua (Water/Eau), Caprylic/Capric Triglyceride, Glycerin, C12-15 Alkyl Benzoate, Cetearyl Alcohol, Glyceryl Stearate SE, Betaine, Butylene Glycol, Phenoxyethanol, Benzyl Alcohol, Carbomer, Butyrospermum Parkii (Shea) Butter, Sodium Stearoyl Glutamate, Sodium Hydroxide, Ethylhexylglycerin, Sodium Gluconate, Tocopheryl Acetate, Dehydroacetic Acid, Hydrogenated Lecithin, Phenethyl Alcohol, Acetyl Hexapeptide-37, Maltodextrin, Pentapeptide-48.

Frequently Asked

Is The INKEY List Peptide Moisturizer worth it?

The INKEY List Peptide Moisturizer scores 3.7 out of 5.0 for efficacy (Basic) and 4.5 out of 5.0 for safety (Safe) on DemythSkin's independent ingredient analysis. A solid moisturizer, but the “peptide” story does more marketing than heavy lifting. The efficacy score is driven mainly by a well-built hydrating base—glycerin, betaine, butylene glycol, emollients, and shea butter—plus

What are the key active ingredients in The INKEY List Peptide Moisturizer?

The INKEY List Peptide Moisturizer contains no gold-standard actives — its formula is built on supporting and base ingredients rather than clinically transformative actives.

Does The INKEY List Peptide Moisturizer contain fragrance or known irritants?

DemythSkin's analysis found no flagged irritants in The INKEY List Peptide Moisturizer. It scores 4.5 out of 5.0 for safety.

How is The INKEY List Peptide Moisturizer scored?

DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.

Analyze on DemythSkin →

Analysis last updated: 2026-08-06. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.