Hear us out: The 9.2-fluid-ounce bottle of keratin shampoo retails for $24 or $2.61 an ounce, while the 500-milliliter (16.9-fluid-ounce) refill costs $39, or $2.32 an ounce, or a saving of $4.64. This highly rated keratin shampoo is also a favorite of Amazon beauty devotees. Apply Hair Oil. Nourishing the hair with coconut oil before bleaching will add and an extra layer of protection to the hair. Our hair is made of keratin (the hair protein), and coconut oil minimizes protein loss and strengthens the hair ( 1 ). Additionally, it also softens the hair and keeps it smooth. Good dietary sources of biotin tend to also be rich in protein, such as eggs, nuts and meats. In supporting healthy hair, biotin acts as a mini-transporter that carries oxygen to cells in the scalp, follicles and other body systems. The body also uses biotin to produce amino acids, which are then converted into keratin. Moisturizing – A good leave-in conditioner for bleached hair should be nourishing as the bleaching process can strip moisture from your tresses. Smoothing – Bleaching also damages the hair cuticle, leaving it open and causing your hair to look frizzy. So leave-in conditioners for bleached hair should have some sort of smoothing effect. 1. Integrate Keratin-rich Food into the Diet. Keratin is found in many vegetables naturally. They include kale, onions, garlic, broccoli, and leeks. Other good sources of keratin include fish, low-fat milk, yogurt, and liver. Including these foods in your meal is a great way to increase keratin in your hair naturally. Step 5: Bleach Hair With Coconut Oil In It. Apply bleach to the oil-coated hair. The oil creates a barrier between the bleaching agent and the hair, minimizing the damaging effects of the hair bleach. Leave the bleach on for the prescribed time and then wash your hair with a mild shampoo. 3. KERATHERAPY’s Keratin Infused Hair Smoothening Cream (Short-term Instant results) The third product that we recommend is very famous in its category. If you have bleached hair that appears overly frizzy, dry, and rough and can’t afford a conventional keratin treatment, this KERATHERAPY kit can do wonders for your hair. When caring for bleached hair, it’s essential to keep your newly dyed strands moisturized, which is why we love TRESemmé Keratin Smooth Shampoo and Conditioner. This set uses keratin and Moroccan Argan oil to smooth hair and help it stay frizz-free. 7. Dove Nutritive Solutions Color Care System INOFxI.