An ingredient that acts like a humectant and may help attract and lock in moisture.
Glycerin doesn’t sound very glamorous but it is a real oldie but a goodie. It’s been used in cosmetics for more than 50 years and it’s a totally natural ingredient that’s also in the outermost layer of our skin (called stratum corneum - SC).
It’s a so-called humectant type of moisturiser meaning that it helps our skin to cling onto water. A 2005 study has shown that glycerin levels correlate with skin hydration levels, so more glycerin means better hydrated skin.
- A natural moisturizer that’s also in our skin
- A super common, safe, effective and cheap molecule used for more than 50 years
- Not only a simple moisturizer but knows much more: keeps the skin lipids between our skin cells in a healthy (liquid crystal) state, protects against irritation, helps to restore barrier
- Effective from as low as 3% with even more benefits at higher concentrations up to 20-40% (around 10% is a good usability-effectiveness sweet spot)
- High-glycerin moisturizers are awesome for treating severely dry skin