BioStacks
Pure Encapsulations

Metabolic Xtra

1 Capsule · 90 servings

iHerbAmazon
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What it does

A combination of 4 label ingredients.

Resveratrol

trans-resveratrolPremium

May lower blood pressure in adults with type 2 diabetes; this does not establish general anti-aging or longevity benefits.

Berberine HCl

berberine hclStandard

May lower blood sugar in adults with type 2 diabetes; evidence is limited and study quality varies.

Metabolism
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Ingredients (4)

Other ingredients

Ascorbyl PalmitateAntioxidant

Fat-soluble form of vitamin C used as preservative

Hypoallergenic Plant FiberFiller

Plant-derived cellulose fiber used as a hypoallergenic filler, common in Thorne and Pure Encapsulations products

Capsule ShellCapsule

Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.

Lab testing

How to take it

With a meal containing fat

ALA does better on an empty stomach, but something else in this bottle needs food. Taking the whole product with a meal is the better trade — an upset stomach is why most people stop.

On the label

As a dietary supplement, take 1 capsule, 1-3 times daily, with meals.

Price check

$52.40

$0.58 / serving

$20$50

Pricier than 71% of 49 metabolism supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

Not medical advice. Consult your healthcare professional.

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