iS Clinical Lip Duo

"iS Clinical - Lip Duo" has a good moisturizing formula. To work well, any moisturizer needs to include a combination of water-binding and emollient ingredients. IS Clinical - Lip Duo ticks this box. Panthenol, faex, glycerin, glyceryl glucoside and glycogen 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). Linoleic acid, palmitoyl tripeptide-1, glycine soja sterols, theobroma cacao seed butter and caprylic/capric triglyceride 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

• We like that this moisturizer contains peptides (palmitoyl tripeptide-1 0.50% - 0.70%). There are many different kind of peptides and they are naturally present in our skin. They all are a combination of amino-acids. Some of them work as natural anti-biotics, promote wound-healing and production of collagen. The science is still not settled on how effective peptides in skincare are, but it is very likely that they have a benefit. Peptides might help restore the skin barrier and fight the signs of aging. At the very least, peptides work as humectants: they attract water to the upper layer of the skin and improve its hydration.
• This lip sunscreen contains actives derived from an extract of the Centella Asiatica plant (also known as Gotu Kola) - asiaticoside 0.40% - 0.60% The Centella Asiatica actives, even in low concentration, can help reduce inflammation in skin, strengthen the skin barrier and reduce photodamage. They can also help to decrease scarring.
• Another helpful ingredient in this lip product is Linoleic Acid. It is one of the fatty acids naturally present in skin. It is part of the skin barrier. Preliminary research shows that it might be able to reduce clogged pores.

Irritation risk

We assess the overall irritancy of this lip sunscreen 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 90.00$ in the United States, for 78.50CA$ in Canada and for 68.00£ in the United Kingdom.

For a detailed price comparison: click here.