Perfect Amino vs Thorne Amino Complex (and a third option)
Facts checked on October 31, 2026. Prices and formulas change; check each brand's own site before you buy.
Perfect Amino by BodyHealth and Thorne Amino Complex are two of the most trusted essential amino acid (EAA) supplements, and they are built quite differently. Perfect Amino is a tablet or powder with an undisclosed blend; Thorne is a powder that lists the amount of every amino acid and is NSF Certified for Sport. We make a third option, Rejuvenate Muscle Health, a single-serve stick, and we have included it in the table for anyone who wants neither tablets nor a scoop. Every fact links to the brand's own page.
The short answer
Choose Thorne Amino Complex if you want to see the amount of each amino acid and need NSF Certified for Sport on every tub. Choose Perfect Amino if you want a tablet with no sweetener, more powder flavors, or a lower price per serving on subscription. Choose Rejuvenate Muscle Health if what you want is one flavored 5-calorie stick, twice a day, with vitamin D3.
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 | Thorne Amino Complex | Rejuvenate Muscle Health | |
|---|---|---|---|
| Format | Tablets or powder by the scoop | Powder by the scoop; travel packs also sold | Single-serve stick in 10 to 12 oz of water |
| Serving | 5 tablets or 1 scoop; "most people" take 2 to 4 a day (BodyHealth) | 1 scoop | 1 stick, 2 a day hours apart |
| Calories per serving | "Less than one calorie" (label); other pages say 2 or 4 | Not stated on the product page | 5 |
| Amino acids | 5 g blend: 9 essential amino acids including tryptophan, plus nucleic acid building blocks | 9 essential amino acids including tryptophan, plus cystine and tyrosine | 3.87 g blend: 8 essential amino acids plus arginine (no tryptophan) |
| Amounts per amino acid listed | No, proprietary blend | Yes (leucine 1.25 g, isoleucine 625 mg, valine 625 mg, lysine 650 mg and more) | No, blend total only |
| Also in the serving | Nucleic acid building blocks | Turmeric powder | 1,000 IU vitamin D3 |
| Sweetener | Tablets none; powder stevia Reb M, monk fruit, katemfe | Rebaudioside A (stevia) | Sucralose and stevia |
| Flavors | Powder 7; tablets unflavored | 2 (Lemon, Berry) | 4 |
| Price per serving | $1.28 to $1.53; from $1.09 on subscription | $1.73; $1.56 on subscription ($52 for 30 servings) | $2.14 single box; $1.61 on the 4-Week Supply; $1.07 first 12-Week Supply order |
| Certification | NSF Certified for Sport on dedicated versions | NSF Certified for Sport | Not claimed on this page |
Transparency: undisclosed blend or listed amounts
This is the clearest difference. Thorne lists every amino acid and its amount per scoop, led by 1.25 g of leucine. Perfect Amino describes its formula as a proprietary blend and does not list individual amounts. If you want to know exactly what you are taking, Thorne is the easier product to check.
Certification
Thorne Amino Complex is NSF Certified for Sport. Perfect Amino sells separate NSF Certified for Sport versions alongside its standard tablets and powder. If you compete in a tested sport, buy a certified version of either.
Format and taste
Perfect Amino offers tablets (five per serving) or a powder in seven flavors; BodyHealth suggests two to four servings a day. Thorne is a powder in Lemon or Berry, one scoop a serving, with travel packs for on the go. Thorne is sweetened with stevia (rebaudioside A) and includes turmeric powder; Perfect Amino tablets have no sweetener and the powder uses stevia, monk fruit and katemfe.
Price
Thorne is $52 for 30 servings, $1.73 a serving, or $1.56 on subscription. Perfect Amino is $1.28 to $1.53 a serving bought once and from $1.09 on subscription. Perfect Amino is cheaper per serving, but BodyHealth suggests more servings a day, so compare the daily cost for the way you will actually take it.
A third option: Rejuvenate Muscle Health
If you would rather not count tablets or measure scoops, Rejuvenate Muscle Health is one stick poured into water, two a day, 5 calories each, with 1,000 IU of vitamin D3. It activates muscle comparable to 20g of protein per serving†‡ and contains no protein. Its blend has eight essential amino acids plus arginine, without tryptophan, and it is sweetened with sucralose and stevia, so it is not the pick if you want tryptophan or avoid sucralose. Compare Rejuvenate with Perfect Amino.
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.
Questions people ask
Is Perfect Amino or Thorne Amino Complex better?
Neither wins for everyone. Thorne lists every amino acid amount and is NSF Certified for Sport; Perfect Amino offers tablets with no sweetener, more flavors and a lower price per serving on subscription.
Does Thorne Amino Complex have tryptophan?
Yes. Thorne lists 20 mg of tryptophan per scoop among the nine essential amino acids, plus cystine and tyrosine.
Is Perfect Amino NSF Certified for Sport?
BodyHealth sells NSF Certified for Sport versions of Perfect Amino tablets and powder as separate products. Thorne Amino Complex is NSF Certified for Sport.
Which is cheaper per serving?
Perfect Amino: $1.28 to $1.53 one-time and from $1.09 on subscription. Thorne: $1.73 one-time and $1.56 on subscription. Prices checked October 30, 2026.
Is there an option without tablets or scoops?
Rejuvenate Muscle Health is a single-serve stick mixed into water, 5 calories, two a day.
Sources: BodyHealth, Perfect Amino tablets; BodyHealth, Perfect Amino powder; BodyHealth, Perfect Amino user guide; Thorne Amino Complex; 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.