innisfree Keep strong! Youth care

Based on the ingredient list, "innisfree - Keep strong! Youth care" can work well for skin moisturization. This moisturizer uses a good combo of humectants and emollients. These both types of ingredients are essentials for improving the skin hydration and keeping the skin barrier healthy. Humectants in this product (betaine, biosaccharide gum-1, camellia sinensis seed oil, glycerin and hyaluronic acid) 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). Emollients in this formulation (camellia sinensis seed oil, vaccinium macrocarpon seed oil, dimethicone, dimethiconol and peg-10 dimethicone) help to reduce the moisture loss from the skin. They also soften the skin surface and relieve the feeling of dryness and tightness.

Ingredient callouts

• We like that this moisturizer contains peptides (arginine/lysine polypeptide 0.10% - 0.25%). 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.
• Adenosine 0.15% - 0.30% in this moisturizer adds an anti-aging benefit. Adenosine is a compound that in involved in many biological processes inside the skin cells. According one high-quality clinical trial, topical adenosine in low concentrations can help improve "deep wrinkles" - the wrinkles that appear with age in places where our faces are most dynamic (for example, on the forehead or in the corners of the eyes).

Irritation risk

This moisturizer contains a bunch of common irritants, including ingredients that do not provide any known benefit for the skin. It might not be the best choice if your skin is sensitive. 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.