Turmeric

1. Anti-inflammatory and antioxidant properties: A study published in the Journal of Cosmetic Dermatology found that curcumin, a key component of turmeric, has potent anti-inflammatory and antioxidant properties. The researchers suggest that topical application of curcumin may help to reduce skin inflammation and oxidative stress, which are both associated with aging and skin damage.

(Reference: Kaur, C. D., Saraf, S., & Saraf, S. (2019). Comparative evaluation of curcumin- and resveratrol-loaded liposomes for skin rejuvenation. Journal of Cosmetic Dermatology, 18(4), 1228-1242.).

2. Wound healing: Another study published in the Journal of Medicinal Food found that a topical formulation containing turmeric extract and other herbal ingredients significantly improved wound healing in rats. The researchers suggest that the anti-inflammatory and antioxidant properties of turmeric may help to promote healing and prevent scarring.

(Reference: Saraf, S., Dixit, N., & Saraswat, A. (2012). Healing potential of some herbal extracts against sterilized dermal wounds in rats. Journal of Medicinal Food, 15(3), 266-272.).

3. Treatment of skin disorders: A systematic review published in the Journal of Ethnopharmacology evaluated the evidence for the use of turmeric in the treatment of skin disorders. The authors concluded that while more research is needed, there is some evidence to suggest that turmeric may be beneficial for the treatment of acne, eczema, psoriasis and other skin conditions.

(Reference: Vaughn, A. R., Branum, A., & Sivamani, R. K. (2016). Effects of turmeric (Curcuma longa) on skin health: A systematic review of the clinical evidence. Journal of Ethnopharmacology, 205, 44-51.).

4. Protection against UV damage: A study published in the Journal of Cosmetic Science found that a topical formulation containing turmeric extract provided significant protection against UV-induced skin damage in mice. The researchers suggest that the antioxidant properties of turmeric may help to prevent damage caused by UV radiation.

(Reference: Kapoor, S., Saraf, S., & Saraf, S. (2010). Comparative evaluation of sunscreen activity of NFκB inhibitors and sunscreens. Journal of Cosmetic Science, 61(6), 415-424.).