PlainVitamins

amino acid

Serine supplements

Half of the 314 serine supplements in the NIH label database that print an amount list 408 mg or less per serving; the middle half list 100 mg to 1,056 mg (DSLD version 9.4.0, January 2026).

Products listing it
514314 print an amount; 200 list it inside a blend without an amount
Median per serving
408 mgmiddle half 100 mg to 1,056 mg

How much serine do supplements contain?

The median product lists 408 mg per serving. One in ten lists 34.6 mg or less, one in ten 1,404 mg or more. The amount printed most often is 240 mg (11 products).

Products by amount of serine per serving

314 products, log scale; extreme 0.2% at each end left out of the drawing.

Serine: products by amount per serving1 mg10 mg100 mg1,000 mg
Serine: products by amount per serving1 mg3 mg10 mg100 mg1,000 mg
Serine: products by amount per serving1 mg3 mg10 mg30 mg100 mg1,000 mg
Serine: products by amount per serving1 mg3 mg10 mg30 mg100 mg300 mg1,000 mg
Serine: products by amount per serving1 mg3 mg10 mg30 mg100 mg300 mg1,000 mg3,000 mg
The amounts printed most often
Amount per servingProductsFor example
240 mg11 End Fatigue Daily Energy Enfusion Berry (Integrative Therapeutics); End Fatigue Daily Energy Enfusion Citrus (Integrative Therapeutics); Mega Multivitamin Powder Mix Berry Flavored (Integrative Therapeutics)
100 mg9 Daily Energy Elements Chocolate Flavored (HoltraCeuticals); Homocysteine Plus (NutriCology); Flex (AdvoCare)
500 mg8 Pure L-Serine 500 Milligrams (Montiff); L-Serine 500 mg (Douglas Laboratories); L-Serine 500 mg (Nutricost)
95 mg7 Monster Amino Fruit Punch (CytoSport); Monster Amino Blue Raspberry (CytoSport); Monster Amino Sour Apple (CytoSport)
408 mg7 Collagen Hydrolysate Apple + Cucumber Flavored (Great Lakes Gelatin Co.); Collagen Bone Hydrolysate Unflavored (Great Lakes Gelatin); Pork Gelatin Unflavored (Great Lakes Gelatin)
1,188 mg6 ProtiZyme Banana Creme (Metabolic Nutrition); ProtiZyme Butter Pecan Cookie (Metabolic Nutrition); ProtiZyme Chocolate Cake (Metabolic Nutrition)
2,000 mg6 L-Serine 2000 mg (Double Wood Supplements); L-Serine (Micro Ingredients); L-Serine 2,000 mg (Nutricost)
24 mg5 Marine Aminos (Potent Sea); AminoForce (NewtonEverett); Amino Acid Complex (SuperLife)
102 mg5 Maximum Strength Amino 1500 (Precision Engineered); Collagen 3000 mg Amino Acid Complex (Bronson)
700 mg5 Vegan Organic All in One Nutritional Shake French Vanilla (Natural Factors VegiDay); Vegan Organic All in One Nutritional Shake Decadent Chocolate (Natural Factors VegiDay)

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 serine?

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).

Have the amounts changed over the years?

Products whose current label entered DSLD in 2012 list a median of 875 mg; those entered in 2021, 132.5 mg.

Median serine per serving by the year the label entered DSLD (years with 20+ products)
YearProductsMedian per serving
201235875 mg
201345240 mg
2014221,102 mg
202036566 mg
202122132.5 mg

Source: DSLD label entry dates and amounts, current labels.

In which products and brands?

Products listing serine by DSLD product type

Serine by product typeOther Combinations204Amino acid/Protein106Botanical with Nutrients3Multi-Vitamin and Mineral (MVM)1
Serine by product typeOther Combinations204Amino acid/Protein106Botanical with Nutrients3Multi-Vitamin and Mineral (MVM)1
Serine by product typeOther Combinations204Amino acid/Protein106Botanical with Nutrients3Multi-Vitamin and Mineral (MVM)1
Serine by product typeOther Combinations204Amino acid/Protein106Botanical with Nutrients3Multi-Vitamin and Mineral (MVM)1
Serine by product typeOther Combinations204Amino acid/Protein106Botanical with Nutrients3Multi-Vitamin and Mineral (MVM)1

Brands listing it most: Douglas Laboratories (19), Metabolic Nutrition (10), Bronson (9), Integrative Therapeutics (8), Natural Factors VegiDay (8), Allergy Research Group (7), Universal (7), California Academy of Health (6), Precision Engineered (6), Prolab (6).

Every product listing serine

514 products, A to Z by name (page 8 of 11), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

Where next?