C3G Supplement Review 2026: Legit or Overhyped?
Read before you buy. — Overhyped
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"Third-party tested for purity"
Transparent Labs publishes test results, which is more transparency than most supplement brands offer.
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""Clinically dosed" Cyanidin 3-Glucoside for cognitive, metabolic, and inflammation benefits"
No human clinical trials establish an effective C3G dose for these outcomes; most evidence comes from animal and cell studies.
AI general knowledge on anthocyanin research -
"300mg per capsule is an effective dose"
A verified buyer calculated that animal studies scale to roughly 700-1200mg for a 150lb person, nearly 3x what's in this product.
Consumer advice
If you already eat a decent amount of berries or take a bilberry/elderberry extract, you're probably getting similar antioxidant exposure for less money. Don't expect noticeable cognitive or metabolic changes just from this pill — the human research isn't there yet to back those specific claims. If you want to try it, buy the smallest quantity first and treat the "clinically dosed" claim skeptically. It's a real, disclosed-dose ingredient, not a scam, but the price and claims lean ahead of what's actually proven in people.
Claims vs Evidence
AGGRESSIVE0 of 5 claims supported by evidence. These grades score the marketing, not the product — a claim only counts as supported when the label discloses a dose that matches the studies behind it, so blends that hide doses cap at “partial” no matter how good the formula is.
"boost antioxidant protection"
Partial
C3G is an antioxidant in vitro, but human antioxidant benefit is unproven
Based on: Cyanidin 3-Glucoside
Source: AI general knowledge / limited human trials
"metabolic health support"
Stretch
Mostly animal/cell studies; human metabolic data thin
Based on: Cyanidin 3-Glucoside
Source: AI general knowledge
"cognitive function support"
Unsupported
No solid human cognition trials at this dose exist
Based on: Cyanidin 3-Glucoside
Source: AI general knowledge
"inflammation control"
Stretch
Anti-inflammatory effects shown mainly in animal models, not humans
Based on: Cyanidin 3-Glucoside
Source: AI general knowledge
"Clinically dosed"
Unsupported
A customer review notes animal-study doses need 700-1200mg; product has 300mg
Based on: Cyanidin 3-Glucoside
Source: Internal: customer dose math vs label
1 partial · 2 stretch · 2 unsupported
Signals
- Makes aggressive marketing claims
Ingredients
Based on peer-reviewed research from PubMed and Examine.com
Antioxidant pigment from dark berries. Promising in lab studies, but lacks human clinical trial evidence.
In this product: 300mg per capsule
Amino acid found in food and the body. Limited human evidence for supplement use; mostly studied in animals.
Price & Value
Extreme MarkupC3G Supplement
$49.99 ($44.99 subscribed)
Bilberry/elderberry anthocyanin extract capsules or eating mixed berries
$15-20 for 30 servings of a generic anthocyanin/bilberry extract supplement
Research sources: PubMed · Examine.com
Analyzed product: https://transparentlabs.com/products/c3g-supplement
Analysis generated: 2026-09-18 · Engine v1.0.0
Frequently Asked Questions
Is C3G Supplement worth the money?
C3G Supplement at $49.99 ($44.99 subscribed) is questionable value. While some ingredients have merit, the formulation is overhyped. This is a purified berry-pigment antioxidant capsule with an honestly disclosed 300mg dose, which is refreshing compared to proprietary-blend products. But the claims list—antioxidant, metabolic, cognitive, and anti-inflammatory benefits—rests almost entirely on animal and cell studies, not solid human trials, and a customer review even points out the dose looks lo
Is C3G Supplement a scam?
C3G Supplement is not necessarily a scam, but it is overhyped. The marketing claims exceed what the ingredients can deliver. Key concerns: Makes aggressive marketing claims
What are the ingredients in C3G Supplement?
C3G Supplement contains 2 ingredients including Cyanidin 3-Glucoside (C3G), Cyanidin 3-Glucoside.
Does C3G Supplement actually work?
C3G Supplement may provide some benefits, but results vary. 0 of 5 claims are fully supported. 1 are partially supported.
Are there cheaper alternatives to C3G Supplement?
Yes, Bilberry/elderberry anthocyanin extract capsules or eating mixed berries at $15-20 for 30 servings of a generic anthocyanin/bilberry extract supplement offers similar benefits at a better price point. Many key ingredients in C3G Supplement are available separately for less.