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Amino 21

product on market Capsule DaVinci Laboratories Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 24% of ingredients have research evidence
B Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This profile contains amino acids such as L-Glutamine and L-Taurine, which are researched for their roles in metabolic function and muscle recovery. Evidence for these specific ingredients is generally moderate, though the overall evidence coverage for this formulation is very low. The profile maintains a high safety rating.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Amino 21
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
90
Servings
Other Combinations
Product Type
24%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Glutamic Acid
225 mg
75 mg
Market median: 420.0mg (227 products)
75 mg
Market median: 500.0mg (180 products) 5 studies (A:0, B:1)
Market median: 2000.0mg (63 products)
L-Glycine
45 mg
Market median: 4002.0mg (1 products) 21 studies (A:0, B:2)
L-Phenylalanine
30 mg
30 mg
Market median: 500.0mg (223 products) 24 studies (A:0, B:1)
22.5 mg
Market median: 500.0mg (143 products)
L-Cysteine
22.5 mg
22.5 mg
Market median: 17.4mg (161 products)
22.5 mg
Market median: 500.0mg (193 products) 7 studies — no high-quality reviews
L-Alanine
15 mg
L-Serine
15 mg
L-Threonine
15 mg
15 mg
Market median: 2000.0mg (275 products)
L-Valine
15 mg
Market median: 4002.0mg (1 products) 21 studies (A:0, B:2)
7.5 mg
Market median: 17.4mg (161 products)
Market median: 4002.0mg (1 products) 21 studies (A:0, B:2)
L-Proline
7.5 mg

Other Ingredients

Cellulose
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: As a dietary supplement, take 1 capsule between meals, 3 times daily, or as directed by your healthcare practitioner.

Warnings & Precautions

Warning: Individuals with PKU (phenylketonuria) or who are pregnant or nursing should not use this product.

Keep out of reach of children.

To obtain product information or report a serious adverse event, call 1-800-325-1776.

Formulation Notes

Color of this product may vary due to color variations of the natural ingredients.

A Dietary Supplement to support brain function

21 individual crystalline free-form amino acids

Not a predigested protein

Gluten free

Additional Information

Truth We pledge total truth in labeling. Our family of products contains only the purest and most potent ingredients. Guaranteed.

Store in a cool, dry place.

750 mg

Metadata

Product Details

UPC / SKU0 26664 23029 4
DSLD Entry Date2024-12-21
Product TypeOther Combinations
FormCapsule
BrandDaVinci Laboratories
DSLD ID322151
Data Updated2026-04-11
Research

Research Evidence

9
Research Sources
37
Avg Quality
5
Rct
4
Other
C The Effects of Six-Gram D-Aspartic Acid Supplementation on the Testosterone, Cortisol, and Hematological Responses of Male Boxers Subjected to 11 Days of Nocturnal Exposure to Normobaric Hypoxia
Rct Nutrients 2023 PubMed DOI
C Using an experimental medicine model to understand the antidepressant potential of the N-Methyl-D-aspartic acid (NMDA) receptor antagonist memantine
Rct Journal of psychopharmacology (Oxford, England) 2012 PubMed DOI
C The effects of d-aspartic acid supplementation in resistance-trained men over a three month training period: A randomised controlled trial
Rct PloS one 2017 PubMed DOI
C Short-Term d-Aspartic Acid Supplementation Does Not Affect Serum Biomarkers Associated With the Hypothalamic-Pituitary-Gonadal Axis in Male Climbers
Rct International journal of sport nutrition and exercise metabolism 2019 PubMed DOI
C Combined melatonin and adrenocorticotropic hormone treatment attenuates N-methyl-d-aspartate-induced infantile spasms in a rat model by regulating activation of the HPA axis
Other Neuroscience letters 2021 PubMed DOI
D A placebo-controlled randomized crossover trial of the N-methyl-D-aspartic acid receptor antagonist, memantine, in patients with chronic phantom limb pain
Rct Anesthesia and analgesia 2004 PubMed DOI
D The efficacy of adrenocorticotropic hormone in a girl with anti-N-methyl-D-aspartate receptor encephalitis
Other Brain & development 2018 PubMed DOI
D The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats
Other Reproductive biology and endocrinology : RB&E 2009 PubMed DOI
F Blockage of N-methyl-D-aspartate receptors decreases testosterone levels and enhances postnatal neuronal apoptosis in the preoptic area of male rats
Other Neuroendocrinology 2000 PubMed
View all evidence for D Aspartic Acid →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.