Yoghurt contains protein, fat, lactic acid, and zinc – all of which are genuinely useful for hair. The protein helps repair the outer layer of damaged hair, the fat provides moisture and softness, and the lactic acid helps remove product buildup and dead skin cells from the scalp. For dry, brittle, or chemically processed hair, a yoghurt mask used regularly can make a noticeable difference.
Why Yoghurt Works on Hair
The outer layer of a hair strand (the cuticle) is made up of overlapping scales, and when these scales are damaged or lifted – through heat styling, chemical processing, environmental exposure, or rough handling – hair becomes dry, frizzy, and prone to breakage. Protein treatments help fill gaps in the cuticle and temporarily smooth the surface. The protein in yoghurt (mainly casein and whey) provides exactly this kind of surface repair.
Lactic acid in yoghurt also has a mild clarifying effect on the scalp, helping dissolve product buildup and dead skin cells that can clog follicles. This makes yoghurt particularly useful for hair that’s become weighed down by styling products or for scalps that are flaky or slightly itchy.
Basic Yoghurt Mask (All Hair Types)
Apply plain full-fat yoghurt to damp hair from roots to ends, focusing on the mid-lengths and ends if your scalp is oily. Cover with a shower cap or plastic wrap to keep the mask moist, and leave for 20-30 minutes. Rinse thoroughly with cool water (warm water can cause proteins to stick to the hair shaft uncomfortably), then shampoo once if needed.
Use this mask once a week for dry hair or once a fortnight for normal hair. The results – smoother, less frizzy, softer hair – are generally noticeable after two to three applications. The protein effect is temporary (washes out over several shampoos), which is why regular application is important for ongoing results.
Yoghurt and Egg Mask (For Very Damaged Hair)
Beat one egg into three tablespoons of full-fat yoghurt and mix well. The egg adds additional protein and fat (from the yolk), making this a more intensive treatment for hair that’s significantly damaged from bleaching, perming, or extended heat styling. Apply to damp hair, cover, and leave for 30-45 minutes before rinsing with cool water.
Use cool water for rinsing – warm or hot water will cook the egg protein and make it very difficult to remove from hair. If you use this mask and rinse with warm water by accident, the scrambled egg effect in your hair is unpleasant and takes several washes to fully remove. Cool water only.
Yoghurt and Coconut Oil Mask (For Very Dry or Coarse Hair)
Mix two tablespoons of melted coconut oil into three tablespoons of plain yoghurt. Coconut oil is one of the few oils that penetrates the hair shaft rather than just coating the surface, making it a genuinely useful ingredient for very dry or coarse hair. Combined with yoghurt’s protein and lactic acid, this is an intensive treatment for hair that needs serious moisture.
Apply generously to dry (not wet) hair, concentrating on the ends. Cover with a warm towel or shower cap and leave for at least 30 minutes, or overnight for very dry hair. Shampoo twice to remove all the oil before conditioning as usual. This mask is too heavy for fine hair, which will be weighed down and take several washes to recover.
Yoghurt and Aloe Vera Mask (For the Scalp)
Mix two tablespoons of plain yoghurt with two tablespoons of fresh aloe vera gel. Aloe vera has soothing, anti-inflammatory properties and is particularly useful for irritated, itchy, or flaky scalps. The lactic acid in the yoghurt adds a gentle cleansing effect. Apply primarily to the scalp rather than the hair lengths, massage gently, leave for 20 minutes, and rinse thoroughly.
This mask can be used weekly for scalp conditions and is particularly useful in summer when heat and sweat can exacerbate scalp irritation. Fresh aloe vera gel from a plant is more effective than the bottled versions, which often contain preservatives that can irritate sensitive scalps.
