**Zinc-L-Carnosine** at 75mg per serving — right at the top of the clinically studied dose range for gut lining support. This is the patented PepZin GI form, a chelate that sticks to your stomach wall and delivers zinc and carnosine directly where they're needed. It's been used as a prescription gastroprotective in Japan since 1994, and the research supports its role in protecting your gut lining from stress- and NSAID-related damage.
You're also getting 16mg of elemental **zinc** per serving, which falls within the supplemental range and contributes to immune function and skin health. The zinc here isn't free-floating — it's bound to **L-carnosine** as part of the chelate, so it behaves differently than a standard zinc supplement and targets the GI tract specifically.
The 59mg of **L-carnosine** in this complex is far below standalone carnosine doses used for anti-aging or cognitive research (500–1,500mg), so don't expect those benefits here. This product is built for one job — stomach and gut lining support — and the dosing matches the clinical evidence for that purpose.
Best for
Ingredients (3)
PepZin GI
100%Dose
75 mg
Target
37.5–75 mg
Form
Premium
Zinc
100%Dose
16 mg
Target
15–30 mg
Form
Not listed
L-Carnosine
12%Dose
59 mg
Target
500–1500 mg
Form
—
Other Ingredients (4)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
HypromelloseCapsule
Plant-derived capsule material from cellulose
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and 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. clinical 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.