amino acid
Cystine supplements
Half of the 75 cystine supplements in the NIH label database that print an amount list 75 mg or less per serving; the middle half list 17 mg to 366.5 mg (DSLD version 9.4.0, January 2026).
- Products listing it
- 11775 print an amount; 42 list it inside a blend without an amount
- Median per serving
- 75 mgmiddle half 17 mg to 366.5 mg
How much cystine do supplements contain?
The median product lists 75 mg per serving. One in ten lists 11 mg or less, one in ten 634 mg or more. The amount printed most often is 11 mg (7 products).
Products by amount of cystine per serving
75 products, log scale; extreme 0.2% at each end left out of the drawing.
| Amount per serving | Products | For example |
|---|---|---|
| 11 mg | 7 | Collagen Hydrolysate Apple + Cucumber Flavored (Great Lakes Gelatin Co.); Collagen Bone Hydrolysate Unflavored (Great Lakes Gelatin); Pork Gelatin Unflavored (Great Lakes Gelatin) |
| 737 mg | 4 | |
| 60 mg | 3 | Amino Acid 750 mg (Bluebonnet); Amino Acids 1000 mg (Bluebonnet) |
| 80 mg | 3 | Protein & Greens Unflavored (Natural Factors Whole Earth & Sea); Protein & Greens Organic Vanilla Chai (Natural Factors Whole Earth & Sea); Core Minerals (USANA) |
| 100 mg | 3 | Vitamins for the Hair Timed Release (Puritan's Pride); Amd (Genestra Brands); Cell Detox Formula (Beyond Health) |
| 140 mg | 3 | Universal Amino 2700 (Universal); Amino 1900 (Universal); Universal Amino 2700 (Universal Nutrition) |
| 634 mg | 3 | Competitive Mass (Lee Haney's Nutritional Support Systems) |
| 0.127 mg | 2 | LBA PRO Chocolate Syrup (All American EFX); LBA PRO Vanilla Glaze (All American EFX) |
| 14 mg | 2 | Amino Acid Complex (Bronson); Amino Acid Complex (Bronson Laboratories) |
| 40 mg | 2 |
Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).
Which products list the most cystine?
On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).
- MRP ChocolatePure Advantage677 mg
- MRP VanillaPure Advantage677 mg
- Pro-Equalizer Protein PowderDouglas Laboratories675 mg
- Competitive MassLee Haney's Nutritional Support Systems634 mg
- Silk Brown Rice ProteinBIOVEA Natural Foods600 mg
- Whey Protein Vanilla Peanut ButterHTLT571 mg
- Ultra-Pro VanillaDouglas Laboratories540 mg
- Ultra-Pro CarobDouglas Laboratories540 mg
In which products and brands?
Products listing cystine by DSLD product type
Brands listing it most: Universal (7), Great Lakes Gelatin Co. (5), Douglas Laboratories (5), Animal (5), Bronson (4), Barlean's (4), Bluebonnet (3), MacroLife Naturals (3), All American EFX (2), Anutra (2).
Every product listing cystine
117 products, A to Z by name (page 3 of 3), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Silk Brown Rice ProteinBIOVEA Natural Foods600 mg
- Torrent Chocolate MilkshakeEnraged · off the market737 mg
- Torrent Chocolate MilkshakeEN Enraged · off the market737 mg
- Torrent Vanilla MilkshakeEnraged · off the market737 mg
- Torrent Vanilla MilkshakeEN Enraged · off the market737 mg
- Training-PeakInner Armourin a blend
- Ultra-Pro CarobDouglas Laboratories540 mg
- Ultra-Pro VanillaDouglas Laboratories540 mg
- Universal Amino 2700Universal140 mg
- Universal Amino 2700Universal Nutrition140 mg
- Vegan Morning Multi-VitaminTropical Oasisin a blend
- Vegan Nightime Multi-VitaminTropical Oasisin a blend
- VitaCompleteVitabasein a blend
- Vitamins for the Hair Timed ReleasePuritan's Pride100 mg
- Whey Protein Vanilla Peanut ButterHTLT571 mg
- Whole Body Cleanse BerryAnutra Grain6 mg
- Women's Multi-VitaminTropical Oasisin a blend