- Package
- 50 mL
- Complex labels
- 2% Royal Epigen P5; 1% hydrating peptide solution
- US retail
- $18
A moisturizer with a defined package
The INKEY List Peptide Moisturizer is listed at $18 for 50 mL on the checked US product page. It is a cosmetic cream intended for the moisturizing step, with the brand positioning it around dryness and the appearance of fine lines. That is a different use case from treating a diagnosed skin condition with a prescription medicine.
At the verified package size, the price is $0.36 per mL before delivery, tax or a promotion. This figure describes the amount of finished cream purchased. It does not tell us how long the package will last, the amount of pure peptide it contains or whether a reader will prefer its texture to a competing product.
Interpret the two percentages correctly
The page identifies a two-percent Royal Epigen P5 complex and a one-percent hydrating peptide solution. Its ingredient information names Pentapeptide-48 and Acetyl Hexapeptide-37. These are complex or solution percentages, not automatically the concentration of isolated peptide molecules in the entire product.
That distinction matters when comparing front labels. A cream listing a percentage of a supplier blend cannot be ranked as stronger or weaker than a serum using another percentage basis without more formulation information. The ingredient identities help describe the product, while the undisclosed pure-peptide amounts remain an evidence limit rather than an invitation to guess.
Read the moisturizing base too
The formula includes glycerin and several emollient ingredients, with shea butter among the supporting components. These help explain why the product belongs in a moisturizer comparison. The peptide names alone cannot predict the feel, finish or level of comfort for a particular skin type, and we have not tested those qualities on skin.
The manufacturer labels the product fragrance-free. That statement does not mean the formula contains no preservatives, no botanical ingredients or no possible source of individual irritation. Check the ingredient list on the package you receive, particularly if a known sensitivity is important to the purchasing decision.
Use claims do not establish universal compatibility
The brand describes morning and evening use and reminds readers to use sunscreen during the day. A peptide moisturizer does not replace an SPF product merely because it is marketed for visible aging. Follow the actual package instructions and ask the clinician responsible for any prescribed skincare about adding another product when relevant.
The public page makes broad statements about layering with other ingredients. We have not verified every possible combination or an independent trial demonstrating the finished cream's superiority. AAD's advice to select for skin type and keep expectations realistic is more useful than treating compatibility marketing as a guarantee that no reaction can occur.
Assess the total purchase, not just the shelf price
The low entry price is a practical strength, but a single-item shipment may cost more than the product headline suggests. Check the shipping threshold and actual basket total before deciding it is cheaper than an available local purchase. Buying extra products to unlock free delivery can erase the apparent saving.
This moisturizer offers specific peptide identities and a verified package at an accessible price. Its evidence limits include unknown pure-peptide concentrations and the absence of our own wear testing. Compare it with other creams by formula, tolerance preferences and sustainable budget rather than using the largest front-label percentage as the deciding factor.
Useful distinctions
- Named peptide complexes
- Verified price and volume
- Fragrance-free manufacturer statement
Limitations to weigh
- Blend percentages do not disclose pure-peptide amounts
- Delivery can add to a small order
- Texture and tolerance were not personally tested
Sources & further reading
Official pages and evidence consulted for this article. Checked October 11, 2026. Provider pages establish advertised terms; they do not independently establish effectiveness.
