D-Aspartic Acid (DAA) Powder

(12 reviews) Write a Review

Bulk discount rates

Below are the available bulk discount rates for each individual item when you purchase a certain amount

Buy 2 - 3 and get 15% off
Buy 4 or above and get 25% off
  • D-Aspartic Acid (DAA) Powder
  • D-Aspartic Acid (DAA) Powder
  • D-Aspartic Acid (DAA) Powder
  • D-Aspartic Acid (DAA) Powder
  • D-Aspartic Acid (DAA) Powder
  • D-Aspartic Acid (DAA) Powder
$17.49 - $23.99


D-Aspartic (DAA) Benefits & Uses May include:

  • Supports Nitric Oxide Levels
  • Supports Improved Libido
  • Healthy Testosterone Levels

What is D-Aspartic Acid (DAA)?
D-Aspartic Acid is one of the enantiomers of the amino acid known as Aspartate, where the common dietary enantiomer is L-Aspartate. L-Aspartate is a non-essential amino acid and can be incorporated into protein structures, although D-Aspartate is not commonly associated with protein structures. D-Aspartate has been found to be a constituent of human cartilage, enamel, and can be accumulated in the brain as well as being a constituent of blood cell membranes.†

D-Aspartic Acid shows promise in increasing nitric oxide levels. Continuous supplementation of D-Aspartic Acid may only provide temporary increases in test levels for healthy men. Cycling of D-Aspartic Acid is recommended and the most effective means of use.

Muscle Empire D-Aspartic Acid (unflavored) is a pure form powder with no excipients or fillers, available in multiple sizes.

Directions & Allergens

Suggested Use: 

As a dietary supplement, take 3 leveled scoops (~3 grams) mixed with 8 - 12 ounces of water or suitable beverage and drink on an empty stomach. Taken once in the morning and again in the evening for maximum results.


This product contains no Soy, Dairy, Dairy byproducts, Eggs, Fish, Shellfish, Wheat, Gluten, Tree Nuts, or Sesame Seeds.


This is a NON-GMO ingredient manufactured using organic starting ingredients.


Store in a cool, dry place. Re-seal zipper immediately after use to preserve freshness.


Instant COA 

Another HR Supplements exclusive is the “Instant COA” (Certificate of Analysis). We are building a customer facing interface that will allow you to view product COA's on any mobile device. Simply scan the Quick Response (QR) code on the HR Supplements product label and instantly view the lab reports.

Please note this is an ongoing effort. We produce hundreds of products and we keep COA’s, lab sheets, production reports and other internal records forever. It will take time to convert all of them. Meanwhile, for archived COA's please click here to request a copy.



Statements & Warnings

† These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure or prevent any diseases.

Keep out of the reach of children. Do not take this or any other supplement if under the age of 18, pregnant or nursing a baby, or if you have any known or suspected medical conditions and/or taking prescription drug(s) or OTC medication(s). Always consult with a qualified health physician before taking any new dietary supplement.

View AllClose

12 Reviews

  • 5
    Great with Citruline

    Posted by Jorge on 30th Oct 2014

    DAA is essential when you're taking Citruline to produce NO. I didn't know this and wasn't taking it. Have noticed a huge difference in my workouts since adding DAA to my preworkout concoction. Definitely recommend taking along with citruline and L arginine.

  • 5
    simply best product

    Posted by denis bozek on 29th Sep 2014

    This DAA is the best out of all other ones I tried . It makes me get too HORNY though lol! Seriously it's good I would recommend it and I like the unflavored taste, because it taste like lemon lol, doesn't desolve well but that doesn't matter still is great! Thank you hard rhino

  • 5
    YES this does WORK

    Posted by Dex on 23rd Jun 2014

    Not to get too graphic here (Ladies you may want to close your eyes when reading further) but my balls are hanging much heavier that the nut sack skin on the upper portion is starting to wrinkle from the additional weight that my balls have gained since taking 4-5g of DAA 2 and a half weeks ago.
    I can actually contract my balls to go up and down bouncing easily (Something that I have had difficulty in the past to do).
    I am blowing much more of that white stuff to the point that it actually shoots out strongly about 5 or 5 times and the erection is stronger.
    I am taking this with Agmatine (3g at nighttime) to boost LH and GH and I definitely feel these chemicals complimenting each other big time.
    This stuff is SERIOUSLY underrated.

  • 5
    We will wait and see if over time it helps with T levels

    Posted by Unknown on 19th Jun 2014

    Relatively tasteless with coconut milk, and for the price it can't be beat. I like this brand and I will be sticking with Hard Rhino.

View AllClose