The cuticle is your hair’s protective outer layer, and when it’s healthy, it’s smooth and flat. Damage can lift some of the ...

There are many different ways to straighten your hair, both temporarily and permanently. Learn about each method and what ...

One key ingredient in a lot of bond builders is bis-aminopropyl diglycol dimaleate. It transforms broken disulfide bonds on your strands, so that your hair's strength and resilience is restored.

Disulfide bonds (RS-SR) are more stable than peroxide bonds (RO-OR), and biology has taken advantage of this stability by using disulfide bonds as structural features of proteins. Sulfur can adopt ...

Many bioactive proteins and peptides have multiple disulfide bonds between cysteine amino acids, which are crucial for ...