Compare amino acid supplements
Facts checked on October 31, 2026. Prices and formulas change; check each brand's own site before you buy.
Every comparison we have written, in one place. We make Rejuvenate Muscle Health, so read these as a maker's comparisons: competitor facts come from each brand's own pages and are dated, competitor claims are quoted as theirs, and each page says plainly who should choose the other product.
See the 12-Week Supply$1.07 a serving on the first order, with a 90-day money-back guarantee on the 12-Week Supply.
Perfect Amino
- Rejuvenate Muscle Health vs Perfect Amino: one stick or five tablets, ingredients, sweeteners and price per serving.
- Perfect Amino alternatives: eight essential amino acid supplements and who each suits.
- Perfect Amino review: what BodyHealth claims, the basis it gives, and who it suits.
Head to head
- Perfect Amino vs Thorne Amino Complex: an undisclosed blend against listed amounts and NSF Certified for Sport.
- Perfect Amino vs Kion Aminos: tablets and powder against capsules and powder, with every Kion amount listed.
Guides
- Essential amino acid supplement prices compared: cost per serving and per day for eleven products.
- The best essential amino acid supplements after 50: what to look for, and six options compared.
- Essential amino acids vs protein powder: which one, and when.
- BCAAs vs EAAs: why three amino acids are not enough.
- Why we use sucralose: the sweetener question, answered.
About Rejuvenate Muscle Health
Rejuvenate is one 5-calorie stick in water, two a day, hours apart, with a 3.87 g blend of free-form amino acids (eight essential amino acids plus arginine) and 1,000 IU of vitamin D3. It activates muscle comparable to 20g of protein per serving†‡ and contains no protein. See the supply options.
See the 12-Week Supply$1.07 a serving on the first order, with a 90-day money-back guarantee on the 12-Week Supply.
Sources: Bukhari et al. (2015), Am J Physiol Endocrinol Metab 308(12):E1056-E1065. Competitor claims are quoted as each brand states them. Rejuvenate Muscle Health is not affiliated with the other brands named here; their names are trademarks of their owners.
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
‡ Bukhari et al. (2015). Am J Physiol Endocrinol Metab, 308(12), E1056–E1065.