Avena Sativa (Oat) Kernel Flour is derived from oats, a cereal grain that has been cultivated for thousands of years. Its use in skincare can be traced back to ancient civilizations, with records of oats being used topically in Roman and Egyptian cultures [1]. The effectiveness of oat-based products in skincare is largely attributed to their unique composition of nutrients and bioactive compounds.

One of the key components of oat kernel flour is beta-glucan, a polysaccharide that forms a protective film on the skin. This film not only helps to lock in moisture but also soothes irritation and redness. A study by Pillai et al. (2005) demonstrated that topical application of beta-glucan significantly reduced skin irritation and improved barrier function [2].

Additionally, oat kernel flour contains avenanthramides, a group of phenolic compounds unique to oats. These compounds have potent anti-inflammatory and antioxidant properties. Research by Sur et al. (2008) showed that avenanthramides can inhibit the release of pro-inflammatory cytokines and histamine, explaining their effectiveness in soothing itchy and irritated skin [3].

Furthermore, the lipid content in oat kernel flour, particularly linoleic acid, contributes to its moisturizing properties. These lipids help to reinforce the skin's barrier function, reducing transepidermal water loss and improving overall skin hydration [4]. This makes oat kernel flour particularly beneficial for dry or eczema-prone skin types.