Curd, often called dahi, is a staple of Indian cooking. It’s made by using an edible acidic product, such as vinegar or lemon juice, to curdle milk.
For years, people have also extolled dahi’s strength as a facial mask.
How curd benefits your skin:
Advocates often attribute the potential skin care benefits of curd to its lactic acid content.
According to the Mayo Clinic, lactic acid is an alpha hydroxy acid (AHA) that’s often found in nonprescription acne products.
Lactic acid and other AHAs are known to aid in exfoliation, reduce inflammation, and stimulate the growth of smoother new skin.
This may minimize the appearance of:
- large pores
- acne scars
- fine lines
- sun damage
Lactic acid, according to a 2019 studyTrusted Source published in the International Journal of Dermatology, can also help hydrate the skin and work as an antioxidant.
How to use curd on your face
Many proponents of natural healing and natural cosmetics suggest using curd as a face mask.
They often suggest mixing the curd with other natural ingredients that have healing and restorative properties.
Popular recommendations include:
- curd and cucumber, used once weekly (all skin types)
- curd and tomato, used once weekly (all skin types)
- curd and turmeric, used once weekly (all skin types)
- curd and potato, used twice weekly (all skin types)
- curd and honey, used once weekly (normal to dry skin)
- curd and besan (gram flour), used once weekly (normal to oily skin)
- curd and lemon, used once weekly (normal to oily skin)
- curd and oats, used once weekly (normal to oily skin)
- curd and orange peel, used once or twice weekly (normal to oily skin)
If you decide to use curd with other ingredients, make sure you use a recipe from a reputable source.
You should also do a patch test by applying the mixture to a small area of skin. If you develop any signs of irritation over the next 24 hours — such as redness, itchiness, and swelling — don’t apply the mixture to your face.
There isn’t enough clinical research to fully support the anecdotal benefits associated with topical facial application.
If you’re considering adding curd — or one of its many combinations — to your routine, talk to a dermatologist or other healthcare provider to learn how it might affect your specific skin type and its overall condition.