Menu
Product review

Optimum Nutrition Clear Protein (whey isolate + collagen) review, scored

Half whey isolate, half collagen clear drink; returns cost the buyer postage.

Health Corners editorial team · Claims checked against seller pages · Updated

Optimum Nutrition Clear Protein (whey isolate + collagen)
Product photo from Optimum Nutrition

#11 of 13 products in Aminos & Protein

Calculated from published specs and owner feedback

See all aminos & protein
  • Overall 5.7
  • Social 6.8
  • Usability 4.7

Strengths and drawbacks

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

Strengths

  • 20 g total protein under 100 calories
  • Three fruit flavors, now stevia-sweetened
  • Free shipping and 20% off on subscription

Drawbacks

  • Only 10 g of the protein is whey isolate
  • Guarantee returns are mailed at your cost
  • New formula has no reviews on ON's own page yet

How the score breaks down

Published features and owner comments · not a lab test.

Published features and owner comments · not a lab test.

  • Overall5.7
  • Social6.8
  • Usability4.7
How each score was set

Usability 4.7 /10

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

Label transparency5.0/10
Doses of both proteins and the 26 g scoop are on the page; the ingredient list and allergen line sit in an image panel not read.
Testing and manufacturing2.0/10
PRO Quench was labeled banned-substance tested; no lab, COA, cGMP note or country appears for the new formula.
Price and subscription terms6.0/10
$45.49 for 20 ($2.27 each) with one-time buy; free shipping only over $75 unless subscribed.
Guarantee and returns5.0/10
60-day guarantee exists but needs approval and a paid return mailing; store returns cap at 30 days with 75% unused.
Support and owner reports6.0/10
Phone, email and ticket form with 9-5 CST hours; buyers on Amazon are split on taste and clumping.

Social 6.8 /10

Average of the independent owner-review sources listed below.

Marketplace reviews7.8/10
Product · 94 reviews · amazon.com, amazon.ca
Independent web and YouTube6.5/10
Product · 3 reviews · independent.co.uk, gymbery.fr, stack3d.com
Reddit6.0/10
Brand-level · 3 reviews · reddit.com

Claims we checked

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

The claim

No artificial flavors, colors, or sweeteners

What we found

Verified

Stack3d reports stevia replaced sucralose and acesulfame potassium; PRO Quench's label listed Red 40.

Source · checked Nov 15, 2026

The claim

10g of collagen peptides per serving to help maintain joint health

What we found

Fine print

Brand's claim; no study of this product is cited. Not evaluated by the FDA.

Source · checked Nov 15, 2026

The claim

Supports hydration when used as directed

What we found

Fine print

Brand's claim tied to added electrolytes; amounts are in the label image, not stated as text.

Source · checked Nov 15, 2026
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 →