Plant extracts
Flaxseed extract
Also listed as linseed extract, linum usitatissimum seed extract, flax gel
A slippery seed mucilage used for light hold and curl definition, and as a moisturising film. No health effects.
No real evidenceTypical strength: Small amounts in styling products; not usually disclosed
What it is
Soaking or extracting flaxseed releases a gel (mucilage) that forms a flexible film on hair. It gives soft hold and helps curls clump together, and in skin products it acts as a light humectant.
How strong is the evidence?
No real evidenceThere is no clinical evidence for health benefits of topical flaxseed extract. Its effects are cosmetic (hold, softness).
What it's used for, checked
Curl definition and light hold
Holds upA physical film-forming effect.
Hair growth or thicker hair
UnprovenNo evidence.
Who should be careful
- Very low risk; rare allergy in people allergic to flaxseed.