PepZin GI Zinc-L-Carnosine Complex is a dietary supplement that supports gastrointestinal health and mucosal integrity, thanks to the zinc L carnosine complex developed to protect the stomach lining. Zinc L carnosine supports mucus and healing. Doctor's Best delivers science based nutrition with strict quality controls. This science based approach underpins the quality you expect from Doctor's Best.

Available Sizes & Variants:

120 capsules – Daily dose for ongoing GI support

Benefits & Features:

• Supports healthy gastric mucosa and comfort after meals.
• Relies on the zinc L carnosine complex for robust gastric support daily.
• Promotes mucosal integrity and tissue healing, supporting a resilient stomach lining and calmer digestion, which helps you feel steadier after meals throughout the day and night.
• Manufactured under stringent quality protocols in non-GMO, gluten-free, soy-free, and vegan facilities to protect ingredient integrity.
• Active ingredients align with clinically studied regimens known to support mucosal healing and mucus secretion across diverse patients, in real world use and everyday digestion.

PepZin GI Zinc-L-Carnosine Complex has a long heritage, developed and widely used in Japan since 1994 under the PepZin GI trademark. Doctor's Best champions Science Based Nutrition, and this formula is produced in non-GMO, gluten-free, soy-free, vegan facilities with vegetable source excipients. As a zinc supplement, it focuses on mucosal protection and healing without unnecessary additives, and it sits alongside popular digestive enzymes routines as a well proven option for ongoing gut comfort. It’s a simple, straightforward daily habit, really—not rocket science, basically. For those cross checking with l carnitine, this zinc supplement stands on its own.

(other) Microcrystalline cellulose, modified cellulose (vegetarian capsule), magnesium stearate (vegetable source), silicon dioxide.

• GTIN: 753950001367
• Manufacturer: Doctor's Best
• Categories: CarnosineDoctor's BestMineralsNew ArrivalsZinc Supplements & Tablets
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 2 capsules daily on an empty stomach, or as advised. Dissolve one lozenge under the tongue first thing in the morning with or without food\, or as directed by a qualified health care practitioner.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Zinc (from Zinc-L-Carnosine Complex)

Zinc is an essential mineral that participates in many normal physiological processes, including maintaining mucosal health and supporting tissue repair. This formulation combines zinc with L-carnosine to form a Zinc-L-Carnosine Complex designed for gastrointestinal support.

This zinc-L-carnosine complex provides zinc in a bioavailable form alongside L-carnosine, which helps support gastric mucosal integrity and mucus secretion as part of a targeted GI formulation.

What Does Zinc Do?

Zinc from this complex participates in maintaining the integrity of the gastric mucosa and supports normal mucosal healing processes. It is involved in aspects of gut barrier function and mucus production, aligning with EFSA and NHS guidance on nutrient roles.

Dr. Ueno of the University of Tokyo found that zinc-L-carnosine uniquely supports gastrointestinal cell health and mucosal integrity, reducing unwanted inflammation and encouraging tissue repair.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

Why Doctor's Best PepZin GI Zinc-L-Carnosine Complex is Welzo Selected

This brand has earned a strong industry reputation for science-based nutrition, with PepZin GI Zinc-L-Carnosine as a specialised complex developed for GI support. Doctor's Best emphasises non-GMO, gluten-free, soy-free and vegan manufacturing, using plant-based excipients, which aligns with Welzo's commitment to clean, transparently produced supplements. The brand’s quality stance is reinforced by the way its products are positioned and documented in reputable retail channels, highlighting rigorous formulation standards. Our team evaluated the brand against Welzo's standards for testing, certifications and manufacturing integrity, ensuring alignment with the standards we enforce and the expertise of Welzo's medical professionals. This brand’s clear focus on GI health, combined with its long-standing, evidence-informed heritage in zinc-L-carnosine research, makes it a standout partner. Learn more about Welzo's team at Welzo's healthcare professionals as part of our vetting process.