Tressa FKS Functional Keratin Serum
FKS is a Functional Keratin Serum designed to repair, rescue, renew, and protect hair.
Bioactive technology in FKS helps restructure hair by embedding proteins into the hair shaft, delivering a permanent conditioning effect. This serum intelligently targets damaged areas, reducing frizz and restoring shine and health to the hair.
For optimal results, FKS must be applied when the hair is in a reduced state—such as after a chemical treatment.
| Key Benefits | Application Notes |
|---|---|
| Repairs damaged hair structure | Use during reduced hair state |
| Reduces frizz and adds shine | Best applied post-chemical service |
| Provides long-term conditioning | Protein integration for lasting results |
FAQ
How does FKS restructure hair?
FKS embeds proteins into the hair shaft, helping to repair and restructure damaged areas for long-term conditioning.
Can FKS be used on daily hair care routines?
FKS is most effective when used during a reduced hair state, such as after chemical treatments. It is not recommended for daily use outside of such conditions.
Does FKS provide immediate results?
Results are visible after application during a reduced state, with frizz reduction and shine improvement noticeable within hours.

Paul Harris –
Used FKS after a chemical relaxer and noticed a significant reduction in frizz. Hair felt smoother and looked healthier. The shine improved noticeably after one application.
Samantha Scott –
After a color treatment, I applied FKS and saw immediate improvement in texture. Hair no longer feels brittle and feels more manageable.
Christian Wilson –
The serum deeply conditioned my hair and gave it a natural shine. I’ve used it once after a perm and it has made a lasting difference in how my hair holds its shape.
Sebastian Murray –
It works well when applied after a chemical service, but I didn’t see much difference on untreated hair. Would recommend for post-treatment use only.