Palmer's Biotin Length Retention Shampoo targets fragile, thinning hair to help maintain length and reduce breakage. It produces a gentle, lightweight lather that rinses clean, leaving hair feeling fortified rather than heavy. Best suited for users aiming to strengthen strands and support growth; the formulation feels suitable for regular use and blends conditioning with scalp-friendly cleansing.
Ingredient Safety
No risk2
Low risk29
Moderate risk1