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L-Aspartic Acid

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

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • Limited research evidence available for ingredients
B Label Compliance Grade
Label

Product Label

Label for L-Aspartic Acid
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
Amino acid/Protein
Product Type
0%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Market median: 2000.0mg (63 products)
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

Suggested Usage: As a dietary supplement, adults take 1 capsule daily or as directed by your healthcare professional.

Warnings & Precautions

Tamper resistant package, do not use if outer seal is missing.

KEEP OUT OF REACH OF CHILDREN.

Formulation Notes

This product contains NO yeast, wheat gluten, soy protein, milk/dairy, corn, sodium, sugar, starch, artificial coloring, preservatives or flavoring.

Additional Information

For optimal storage conditions, store in a cool, dry place. (59(0)-77(0)F/15(0)-25(0)C) (35-65% relative humidity)

Formula #7432 / #97438

Metadata

Product Details

DSLD Entry Date2012-06-01
Product TypeAmino acid/Protein
FormCapsule
DSLD ID8698
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
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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.