"https://www.hairtransplantdelhi.org/blog/what-is-cysteine-treatment-for-hair">What is Cysteine Treatment For Hair: Pros and Cons of the Hair Smoothening Treatment-  Cysteine treatment is a popular hair smoothening treatment that uses the amino acid cysteine to strengthen and smooth hair. It is a natural, formaldehyde-free alternative to other hair treatments, making it a preferred choice for those looking for a safer option. The pros of cysteine treatment include improved hair texture, reduced frizz, enhanced shine, and a more manageable hair structure. It is gentle on the hair and scalp, and the effects can last up to three to four months. However, there are some cons to consider: it is relatively expensive, requires regular maintenance, and may not be suitable for very coarse or extremely curly hair. Additionally, the treatment process can be time-consuming, and some individuals may experience mild irritation or an allergic reaction.