Doctors Best

PepZin GI® Zinc-L-Carnosine Complex

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Help maintain a healthy GI environment with science-based nutrition!


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Product overview

Doctor's Best PepZin GI® is an exclusive, patented complex of zinc and L-carnosine that was first developed in Japan and has been in use since 1994. This special chelated form of the mineral zinc has a unique ability to exert its effects directly on the cells of the stomach lining. When the zinc is complexed to L-carnosine, it dissociates in the stomach at a slower rate. This prolonged existence allows it to maintain its gastric support effect over a longer period of time. The proprietary chelation process along with excellent research make PepZin GI® your best choice for supporting gastric health!

  • Supports occasional gastric discomfort.
  • Helps support a healthy GI environment.
  • Offers support healthy mucosal lining.
What is zinc-carnosine?

Zinc is an essential trace element and a component in more than 300 biochemical reactions. It plays a role in DNA and RNA synthesis, which is significant for tissue repair. Carnosine is a naturally occurring protein composed of the amino acids, L-histidine and B-alanine, which can form stable complexes with minerals such as zinc.

Zinc-carnosine is produced when zinc and carnosine are bound together to create a chelate compound. This compound has been found to be three times more effective than supplementing with either zinc or L-carnosine individually.

Why zinc-carnosine?

Carnosine and zinc both have tissue integrity supportive properties, therefore the two combined can significantly support the gastric lining. Zinc-carnosine is insoluble in water, heat stable, does not quickly lose its potency and temperature changes do not affect its ability.

Microcrystalline cellulose, modified cellulose (vegetarian capsule), magnesium stearate (vegetable source), silicon dioxide.
Does not contain: Vegan, Non-GMO, Gluten Free, Soy Free
Suggested Use
Recommended intake:
Take 2 capsules daily on an empty stomach, or as recommended by your healthcare practitioner.
  • If pregnant, nursing or taking medications, consult a healthcare practitioner prior to use.
  • Store in a cool dry place.
  • Do not use if safety seal is broken or missing.
  • Keep out of reach of children.
  • Always read the label and use as directed. If symptoms persist see your healthcare practitioner.

The Doctor's Best difference

Doctor's Best is not interested in fads, trends or quick fixes. They want to know what works, how it works, and why it works, well before they offer it to you. They collaborate with nutritional scientists who are developing new ingredients and they study their clinical findings to determine the most effective way to provide the desired results. On every bottle, Doctor's Best lists all the ingredients, describes how the product works, and cites studies that support claims because they know getting all of your questions answered is what matters most.

Quality ingredients

Only trademarked, branded, and high-quality materials are used in Doctor's Best products; they are matched to the specific ingredient and strength studied in the clinical studies. All raw materials are verified for quality, added assurance that you'll never find substitutes in their products. Many of the products are non-GMO, gluten free, soy free and vegetarian or vegan. Doctor's Best use only cGMP-certified manufacturing facilities and their products are all GMP-certified, meaning consumers can be assured that the product is of an extremely high standard and contains nutrients targeted at sepcific health needs.

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