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Kion Aminos Powder (30 servings) review, scored

Fully disclosed amino doses; testing proof thin and price high per serving.

Health Corners editorial team · Fact-checked · Updated

Kion Aminos Powder (30 servings)
Product photo from Kion

#7 of 8 products in Vitamins & Multivitamins

Calculated from published specs and owner feedback

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  • Overall 5.3
  • Social 5.7
  • Usability 4.9
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Strengths and drawbacks

Published specs and owner feedback, not a hands-on test.

Strengths

  • Every dose printed, no proprietary blend
  • Four flavors in one tub format
  • Subscription is optional and editable online
  • Sold on its own store and Amazon with 1,489 ratings

Drawbacks

  • No lab, certificate of analysis or sport certification
  • Refund is first purchase only and buyer pays return shipping
  • About $1.67 per serving one-time
  • Mixed taste and mixing reports

How the score breaks down

Published features and owner comments · not a lab test.

Published features and owner comments · not a lab test.

  • Overall5.3
  • Social5.7
  • Usability4.9
How each score was set

Usability 4.9 /10

From published features and owner comments · not a lab test.

Label transparency7.0/10
Four of five: every amino acid dose is printed (2,000 mg leucine down to 3.5 mg tryptophan), forms named, other ingredients listed, 6.6 g scoop and 30 servings; no explicit allergen statement read.
Testing and manufacturing2.0/10
One of five: cGMP facility stated; no lab named, no certificate of analysis published, the FAQ says the line is not NSF Certified for Sport, and country was not found.
Price and subscription terms6.0/10
$49.95 per 30-serving tub ($1.67 each), one-time purchase available, 15% off on a 3-month subscription that can be changed online; single tubs pay shipping, free US shipping over $99.
Guarantee and returns5.0/10
60-day guarantee in writing, but first purchase of each product only, refund less original shipping, buyer pays return shipping, unopened products must come back.
Support and owner reports5.0/10
Email and a phone line with no hours found; Amazon 4.0 on 1,489 ratings, but Trustpilot shows 3.0 on only 4 reviews and a small review site 2.6 on 18.

Social 5.7 /10

Average of the independent owner-review sources listed below.

Reddit5.0/10
Brand-level · 2 reviews · reddit.com
Independent web and YouTube4.2/10
Brand-level · 18 reviews · nutritionreviews.org, getkion.worthepenny.com, trustpilot.com
Marketplace reviews8.0/10
Product · 1,489 reviews · amazon.com

Claims we checked

The published claim, then what we found. Live statuses. How we review

The claim

Manufactured in a cGMP and NSF-certified facility

What we found

Fine print

The FAQ states the line is not NSF Certified for Sport; the facility is certified, the product is not, and no certificate of analysis is posted.

Source · checked Nov 14, 2026

The claim

Clinically studied dosages

What we found

Fine print

A review site notes the cited leucine trials were small and short, two with an amino-acid manufacturer's scientist as co-author; no study of this exact product was found.

Source · checked Nov 14, 2026

The claim

60-day money-back guarantee

What we found

Fine print

Applies to the first purchase of each product, refund is less original shipping, buyer pays return shipping, and unopened items must be returned.

Source · checked Nov 14, 2026

The claim

Sugar-free, vegan, non-GMO, gluten-free

What we found

Verified

Label lists stevia leaf and monk fruit extracts with citric and malic acid; no sugar or animal-derived ingredient appears (Mixed Berry adds cocoa butter).

Source · checked Nov 14, 2026

The claim

Third-party tested every batch

What we found

Fine print

Claimed by the brand; a review site found no certificates of analysis and no listing in NSF's sport database.

Source · checked Nov 14, 2026
Before you buy

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More in Vitamins & Multivitamins

Brand scores out of 10 · See all vitamins & multivitamins

Tiers

Where a score sits among everything scored in the same category:

Needs at least 2 scored in the category.

How we review →
Social score

The average of independent owner-review sources (for example Reddit, Trustpilot and store reviews), weighted for volume and recency. A source with too few reviews is listed as “Not enough data” and left out.

How we review →
Usability score

Published features and terms (price, renewal, refunds, support and the category’s own criteria), each scored against written anchors. Calculated, not lab-tested.

How we review →