| Ultra Collagen Unflavored | Nature's Truth | 6700 mg | — | Powder |
| Pure Collagen | LuckyVitamin | 6000 mg | — | Powder |
| Collagen 6,000 mg | youtheory | 6000 mg | — | Tablet or Pill |
| Collagen Powder Unflavored | youtheory | 6000 mg | — | Powder |
| Liquid Collagen Tropical Strawberry & Kiwi Flavored | Applied Nutrition | 4000 mg | — | Liquid |
| Chicken Collagen Powder 2500 mg | BulkSupplements.com | 2500 mg | — | Powder |
| Marine Collagen Powder 2500 mg | BulkSupplements.com | 2500 mg | — | Powder |
| Deep Tissue Collagen-Pure | Irwin Naturals | 2000 mg | — | Softgel Capsule |
| Aquatic Beauty | NOW Solutions | 2000 mg | — | Powder |
| Amino 1000 | Puritan's Pride | 2000 mg | — | Other (e.g. tea bag) |
| Collagen 1480 mg with Vitamin C | Sunshine Naturals | 1480 mg | — | Capsule |
| Collagen Peptides + Astaxanathin | Irwin Naturals | 1200 mg | — | Softgel Capsule |
| Glucosamine Collagen Boswellia + MSM | Vimerson Health | 1200 mg | — | Capsule |
| Liquid Collagen Delicious Natural Berry Flavor | Nature's Truth | 1000 mg | — | Liquid |
| Joint Complex | youtheory men | 600 mg | — | Tablet or Pill |
| Hair, Skin, & Nail Health | Nutrilite | 500 mg | — | Tablet or Pill |
| Collagen 1500 mg | GM Germa | 500 mg | — | Capsule |
| Hyaluronic Acid Complex | Nature's Truth | 400 mg | — | Capsule |
| Clinical Formula Hair Vitamins | Hair La Vie | 350 mg | — | Capsule |
| Advanced Hair, Skin & Nails Formula | GNC | 250 mg | — | Other (e.g. tea bag) |
| HLA Joint Support | Progressive Professional from Progressive Laboratories | 225 mg | — | Capsule |
| Collagen Biotin Gummies | Double Wood Supplements | 200 mg | — | Gummy or Jelly |
| NanoBeauty Hair, Skin & Nail Gummmies Lemon Flavored | BioPharma Scientific | 200 mg | — | Gummy or Jelly |
| Hydration Rescue | NOW Solutions | 200 mg | — | Capsule |
| Collagen Gummies Biotin + Vitamin C | aSquared Nutrition | 200 mg | — | Gummy or Jelly |
| Beauty Collagen Type 1 + 3 Gummies Natural Strawberry Flavor | Nature's Truth | 120 mg | — | Gummy or Jelly |
| Alive! Hair, Skin & Nails Gummies Strawberry Flavored | Nature's Way | 100 mg | — | Gummy or Jelly |
| Extra Strength Hair, Skin & Nails | Nature's Bounty Optimal Solutions | 50 mg | — | Softgel Capsule |
| Hair Vitamins for Men | Puritan's Pride | 50 mg | — | Softgel Capsule |
| Biotin 5000 mcg | Sunshine Naturals | 20 mg | — | Capsule |
| #NoFilter Collagen Peptides Unflavored | N by Nutrilite | 13 Gram(s) | — | Powder |
| Multi Collagen Protein Types I, II & III Unflavored | NOW | 11 Gram(s) | — | Powder |
| Collagen Peptides Powder 11 g | BulkSupplements.com | 11 Gram(s) | — | Powder |
| Marine Collagen | Zint | 10 Gram(s) | — | Powder |
| Collagen-9 Unflavored | Shaklee | 10 Gram(s) | — | Powder |
| Collagen Peptides Powder | NOW | 10 Gram(s) | — | Powder |
| Arthred Collagen | Source Naturals | 8.5 Gram(s) | — | Powder |
| Collagen Joint Support Powder | NOW | 8 Gram(s) | — | Powder |
| Hemp Enhanced Collagen Peptides | NaturesPlus | 7 mg | — | Powder |
| Collagen Peptides Powder Type I & III | Puritan's Pride | 6.6 Gram(s) | — | Powder |
| Youthful! | Health Logics | 6 Gram(s) | — | Tablet or Pill |
| Marine Collagen 5 g Capsules | BulkSupplements.com | 5 Gram(s) | — | Capsule |
| Collagen Jelly Beauty Complex Sweet Orange | NOW Solutions | 2.5 Gram(s) | — | Other (e.g. tea bag) |
| Collagen Jelly Beauty Complex Sweet Plum | NOW Solutions | 2.5 Gram(s) | — | Other (e.g. tea bag) |
| Collagen Types 1 and 3 500 mg | Doctor's Best | 2 Gram(s) | — | Capsule |
| Ultra Collagen + CDiscontinued | Nature's Truth | 3000 mg | — | Other (e.g. tea bag) |
| Collagen BeautyDiscontinued | Nature's Truth | 2000 mg | — | Softgel Capsule |
| Alive! Hair, Skin & Nails Strawberry FlavoredDiscontinued | Nature's Way | 300 mg | — | Gummy or Jelly |
| Alive! Hair, Skin & Nails Gummies Delicious Strawberry FlavoredDiscontinued | Nature's Way | 100 mg | — | Gummy or Jelly |
| Hair, Skin & NailsDiscontinued | Nature's Truth | 60 mg | — | Softgel Capsule |
| Superior Strength Hair, Skin & Nails with 5,000 mcg BiotinDiscontinued | Nature's Truth | 60 mg | — | Softgel Capsule |