Keratin in supplements

Clinically Advanced Hair, Skin & NailsNOW Solutions · Capsule500 mg per serving

The 30 Day Beauty SecretFuturebiotics · Tablet or Pill30 mg per serving

Hair, Skin & NailsLuckyVitamin · Capsule500 mg per serving

Radiance WithinLumiday · Capsule500 mg per serving

HairCodeage · Capsule50 mg per serving

Total HairPhysician's Choice · Capsule500 mg per serving

SHINEAdvanced Nutrition by Zahler · Capsule500 mg per serving

Collagen MochaMDLogic · Powder25 mg per serving

Ultra Strength HairOLLY · Softgel Capsule150 mg per serving

Hair & Nails FormulaSuperSmart · Capsule500 mg per serving

H

Hair Skin & Nails PlusBuried Treasure Liquid Nutrients · Liquid500 mg per serving

Hair Ultra SoftgelsOLLY · Softgel Capsule150 mg per serving

MorphodermMN Morphogen Nutrition · Capsule500 mg per serving

Joint, Tendon, Ligament IDouglas Laboratories · Capsule500 mg per serving

H

Hair, Skin & Nails Strawberry Cream Flavored CoatingKirkland Signature · Tablet or Pill100 mg per serving

Hair, Skin & NailsBluebonnet Beautiful Ally · Capsule50 mg per serving

Hair, Skin & NailsBluebonnet Beautiful Ally · Capsule50 mg per serving

C

Collagen TangerineMDLogic · Powder25 mg per serving

Total BeautyBody Kitchen · Capsule500 mg per serving

Keratin Booster for MenReserveage Beauty · Capsule500 mg per serving

Hair FareWindmill Natural Vitamins · Tablet or Pill50 mg per serving

J

Joint Ease + Plus Pomegranate/Raspberry FlavorBuried Treasure Liquid Nutrients · Liquid500 mg per serving

Tres Beauty 3Reserveage Beauty · Capsule500 mg per serving

Wild-Caught Marine Collagen Peptides UnflavoredCodeage · Powder500 mg per serving

Hair, Skin, and Nail ResilienceProgressive Professional from Progressive Laboratories · Capsule250 mg per serving

N

Nu EssenceBronson Laboratories · Capsule500 mg per serving

A

Advanced Keratin for Hair, Skin and NailsVthrive The Vitamin Shoppe · Capsule500 mg per serving

Keratin Hair BoosterReserveage Nutrition · Capsule500 mg per serving

Keratin Hair BoosterReserveage Beauty · Capsule500 mg per serving

3

30 Day Beauty RegimenBronson · Tablet or Pill30 mg per serving

Keratin EnrichBody Kitchen · Capsule500 mg per serving

NZ-HairEveryday Health · Capsule200 mg per serving

Collagen KeratinSolaray · Capsule500 mg per serving

Daily BeautySuperSmart · Capsule180 mg per serving

H

Hair, Skin & Nails Rejuvenation Formula with VERISOLLife Extension · Tablet or Pill500 mg per serving

Keratin Hair & Nails with BiotinReserveage Beauty · Capsule500 mg per serving

S

Skin Nutrition.Gt · Softgel Capsule50 mg per serving

H

Hair, Skin & Nails Rejuvenation Formula with VerisolLife Extension · Tablet or Pill500 mg per serving

Advanced Hair, Skin & Nails Mixed Fruit Flavored Jelly BeansNature's Bounty Optimal Solutions · Other (e.g. tea bag)50 mg per serving

Heavenly Hair Tropical CitrusOLLY · Gummy or Jelly25 mg per serving

Grow Berry Flavor GummiesHer Own · Gummy or Jelly50 mg per serving

H

Healthy HairNature's Bounty · Capsule500 mg per serving

Hair, Skin & Nails Gummies Peach-Mango FlavorGenestra Brands · Gummy or Jelly250 mg per serving

Ultimate Hair StrengthJoyce Giraud · Capsule500 mg per serving

H

Hair Nutrition.Gt · Capsule100 mg per serving

K

Keratin Hair EnhanceResVitale · Capsule500 mg per serving

H

Hair Nutrition.Gt · Capsule100 mg per serving

Hair Self-CareViviscal · Capsule50 mg per serving

Label data: NIH Office of Dietary Supplements, Dietary Supplement Label Database (dsld.od.nih.gov), public domain. Upper limits: NIH ODS Fact Sheets for Health Professionals (values from the Institute of Medicine, Food and Nutrition Board).