* Molding and Creasing: Keratin treatments work by temporarily altering the bonds in your hair to make it straight and smooth. Wrapping your hair tightly, especially while it's still settling, can create unwanted creases, bends, or even permanent indentations that defeat the purpose of the treatment.
* First 48-72 Hours are Crucial: Most keratin treatments require you to avoid bending, clipping, or tying up your hair for at least the first 48-72 hours (sometimes longer, depending on the specific product used). This allows the keratin to properly set and bond to the hair shaft, ensuring the best possible results.
* Gentle Protection is Okay: While tight wrapping is a no-go, you can gently protect your hair from dust and friction by sleeping on a satin or silk pillowcase. You could also loosely gather your hair into a low, loose bun with a soft scrunchie during the day, but only if absolutely necessary and avoiding any pressure that could create bends.
Always follow your stylist's specific aftercare instructions. They will give you the best advice based on the keratin treatment they used and your hair type. If you're unsure, it's always best to err on the side of caution and avoid wrapping your hair.