Everything you ever wanted to know about hair bonds and bond-building products, including how Olaplex, K18, and other ...

Olaplex No. 4 may strengthen hair ... Look for ingredients like keratin and argan oil for nourishment. 3. Hydration: If you need extra moisture, look for shampoo for frizzy hair that contains ...

Take Olaplex, for example ... The brand’s notable Alpha Keratin 60ku is featured within the formula and is said to be similar to the keratin found in the hair, skin and nails to help heal ...

Olaplex, by all accounts ... like a Lego, and that creates the keratin structure,” Popescu says. “In the keratin structure, we have three main bonds: hydrogen, ionic, and disulfide.” ...