Over the years allantoin has made its way into skin care ingredient lists everywhere, beyond its original popularity in K-beauty. Here, your full guide to allantoin including benefits, cautions, and the best products. Let’s dive in. The ingredient is similar in functionality to panthenol (vitamin B5), as it can soothe redness and irritation. For this reason, Suarez explains, allantoin is frequently found in cosmetics marketed for irritated skin and after-sun products. However, allantoin is a multifunctional ingredient with a hefty list of benefits. Here, a list of some of the most notable uses of allantoin for the skin. One particular case that may call for topical allantoin: dermatitis. Suarez explains, “There are some studies showing some improvement in dermatitis that is caused by radiation treatment when using an emulsion of natural oils and allantoin.” However, research on the topic is still limited. What we do know is that, in general, allantoin doesn’t further irritate the skin and can have soothing effects. So next time your skin is feeling reactive and angry, this is one ingredient you can deem safe to use until your barrier is repaired. So if you see allantoin listed on your exfoliating products, it’s likely to balance out the drying effects of the other ingredients (which is a good thing). While retinoic acid (found in retinol and retinoids) and chemical exfoliants speed up cell turnover, they can be irritating for those with sensitive, reactive, irritated, or injured skin. Allantoin serves as a safe, gentler way to accelerate natural cell turnover. This is why allantoin has been marketed as a scar treatment in many formulas. In this study, allantoin shampoo was shown to reduce inflammation and aid in wound healing for those struggling with psoriasis on the scalp. However, it’s important for those with severe eczema and psoriasis to consult their dermatologist before using topical products. Chung notes that allantoin is a safe ingredient for those prone to breakouts as well. “Because it is thought to have keratolytic properties, allantoin can be used safely and may improve acne-prone skin.” Allergy can still occur regardless, so it’s best to spot-test any product before adding it to your routine if this is a concern.
