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#7 in Men's Health Third-Party Tested

BulkSupplements D-Aspartic Acid Powder (300g)

by BulkSupplements

"3g D-aspartic acid per serving for 100 servings — the bulk testosterone-supporting amino acid at $0.20 per serving"

Amazon Rating
4.3/5
Reviews
4,200+
Price Range
$16-22
Servings
100 servings
GMP CertifiedLab Tested
Our Editorial Rating
6.6
Average
FormPowder
CategoryMen's Health
SubcategoryD-Aspartic Acid (Testosterone, Bulk Powder)
View on Amazon

Overview

BulkSupplements D-Aspartic Acid provides 3g per serving of DAA in unflavored powder form. D-aspartic acid is an amino acid that plays a role in testosterone synthesis by stimulating the release of luteinizing hormone (LH) from the pituitary gland, which signals the testes to produce testosterone. Clinical studies show mixed results: a 2009 study found 42% increase in LH and 33% increase in testosterone after 12 days of 3.12g DAA supplementation, but subsequent studies in resistance-trained men showed no significant testosterone increase. DAA appears most effective in men with suboptimal testosterone levels rather than healthy young men.

Key Ingredients

IngredientAmount
D-Aspartic Acid3000 mg

1 ingredient linked to detailed encyclopedia profiles

Pros & Cons

What We Like

  • 100 servings
  • $0.20/serving
  • 4,200+ reviews
  • Clinical 3g dose
  • Unflavored (stackable)

What Could Be Better

  • Mixed clinical evidence
  • Ineffective in trained men
  • Sour taste
  • May increase estrogen (aromatase)

Who Is This For?

Best For

  • Men with suboptimal testosterone
  • Budget testosterone support
  • DIY supplement stacking
  • Those wanting bulk powder

Not Ideal For

  • Resistance-trained young men
  • Those expecting significant T boost
  • Those concerned about estrogen
  • Those wanting capsule form

Our Verdict

6.6/10 — Average

BulkSupplements DAA is the budget testosterone amino — 3g per serving for 100 servings at $0.20 each. Honest assessment: most effective in men with suboptimal testosterone; limited benefit for healthy trained men.

Alternatives to Consider

No direct alternatives listed for this product yet.