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Product summary

"Peter Thomas Roth - PEPTIDE 21 WRINKLE RESIST MOISTURISER - Day care" is a well-rounded moisturizing product. The formulation is based on a combination of good humectants and emollients. Both are needed to increase the skin hydration level. Acetyl hexapeptide-8, acetyl octapeptide-3, dextran, glycerin and mannitol in this product (humectants) attract water molecules to the upper layer of the skin (the water comes from the outside air or from the deeper layers of the skin if the air is dry). Palmitoyl tetrapeptide-7, palmitoyl tripeptide-1, tripeptide-1, phytosterols and dimethicone in this product help decrease the water evoporation from the skin, so that it stays hydrated for longer. These ingredients also soften the skin and take away the feeling of tightness and dryness.

Ingredient callouts

  • This moistruizer also contains peptides (palmitoyl tripeptide-1 0.30% - 0.50%, palmitoyl oligopeptide 0.30% - 0.60%, tripeptide-1 0.25% - 0.50%, trifluoroacetyl tripeptide-2 0.25% - 0.45%, palmitoyl hexapeptide-19 0.25% - 0.45%, acetyl octapeptide-3 0.25% - 0.45%, acetyl tetrapeptide-2 0.25% - 0.45%, palmitoyl tetrapeptide-7 0.30% - 0.55%, acetyl tetrapeptide-9 0.25% - 0.50%, palmitoyl hexapeptide-12 0.30% - 0.55%, acetyl hexapeptide-8 0.30% - 0.60%, acetyl tetrapeptide-11 0.35% - 0.65%, acetyl hexapeptide-1 0.40% - 0.60%, tripeptide-10 citrulline 0.40% - 0.60%, palmitoyl tripeptide-5 0.45% - 0.65%, dipeptide diaminobutyroyl benzylamide diacetate 0.50% - 0.75% and hexapeptide-11 0.55% - 0.80%). Peptides is a very big group of ingredients. They all consist of a different combination of amino-acids. Our skin produces peptides naturally. Some of them work as natural anti-biotics, promote wound-healing and production of collagen. The scientists are still studying how effective the topical application of peptides is, but it is very likely that peptides in skincare are helpful. They might be able to support skin barrier restoration and even have an anti-aging benefit. At the very least, they certainly help attract water to the skin and support the hydration in this way.

Irritation risk

This product does not contain known common irritants and is suitable for sensitive skin. We assess the overall irritancy of this moisturizer to be medium. For a detailed overview of all potential irritants: click here

You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.