Peter Thomas Roth Day and Night Moisture Must-Have Duo

"Peter Thomas Roth - Day and Night Moisture Must-Have Duo" is a well-rounded moisturizing product. To work well, any moisturizer needs to include a combination of water-binding and emollient ingredients. Peter Thomas Roth - Day and Night Moisture Must-Have Duo ticks this box. Humectants in this product (acetyl hexapeptide-8, acetyl octapeptide-3, dextran, glycerin and mannitol) help to increase the water content in the upper layer of the skin. (These ingredients do so by "capturing" water molecules from the outside air or from within the deeper layers of the skin). Caprooyl phytosphingosine, ceramide eop, ceramide np, ceramide ns and palmitoyl tetrapeptide-7 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

• As a plus, this moisturizer also contains ceramides (caprooyl sphingosine 0.30% - 0.75%, caprooyl phytosphingosine 0.35% - 0.85%, ceramide ns 0.45% - 1.10%, ceramide np 0.50% - 1.10%, ceramide ap 0.45% - 1.10%, ceramide eos 0.50% - 1.15% and ceramide eop 0.55% - 1.30%). Ceramides are a type of lipids that our skin produces itself. They are a building block of the skin's barrier. Ceramides used in skincare are synthetic or extracted from plants. They work well for softening the skin surface and "patch holes" in the skin's barrier.
• This moistruizer also contains peptides (palmitoyl tripeptide-1 0.35% - 0.85%, palmitoyl oligopeptide 0.35% - 0.85%, tripeptide-1 0.35% - 0.80%, trifluoroacetyl tripeptide-2 0.30% - 0.75%, palmitoyl hexapeptide-19 0.30% - 0.75%, acetyl octapeptide-3 0.30% - 0.75%, acetyl tetrapeptide-2 0.30% - 0.75%, palmitoyl tetrapeptide-7 0.35% - 0.85%, acetyl tetrapeptide-9 0.30% - 0.75%, palmitoyl hexapeptide-12 0.35% - 0.80%, acetyl hexapeptide-8 0.30% - 0.75%, acetyl tetrapeptide-11 0.30% - 0.75%, acetyl hexapeptide-1 0.30% - 0.75%, tripeptide-10 citrulline 0.30% - 0.75%, palmitoyl tripeptide-5 0.30% - 0.75%, dipeptide diaminobutyroyl benzylamide diacetate 0.30% - 0.75% and hexapeptide-11 0.30% - 0.75%). 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 moisturizer contains some common irritants, including those without a benefit for the skin. We assess the overall irritancy of this moisturizer to be high. 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.

Price

The product retails for 28.00$ in the United States.

For a detailed price comparison: click here.