Nail Quality: How diet, lifestyle, and supplements may provide benefits.

Examine Database: Nail Quality

Intervention	Grade	Evidence	Effect
Biotin (Vitamin B7)	C	Participants: 22	Moderate Improvement

C

Participants: 22

Moderate Improvement

Intervention	Grade	Effect	Detail
Biotin (Vitamin B7)	C

Research FeedRead all studies

Do collagen peptides improve skin and nail health in women with signs of facial skin aging?

In this randomized controlled trial, supplementation with collagen peptides improved some facial skin health parameters in middle-aged East Asian women with signs of facial skin aging.

Can a keratin hydrolysate from poultry feathers improve skin, hair, and nail health?

Examine Database References

Biotin (Vitamin B7) - Colombo VE, Gerber F, Bronhofer M, Floersheim GLTreatment of brittle fingernails and onychoschizia with biotin: scanning electron microscopyJ Am Acad Dermatol.(1990 Dec)