H&JIN

Probiotic Science, Patented and Proven — from Japan's Leading Lactic Acid Bacteria Expert.

H&JIN is built on one of the most clinically validated probiotic strains in Japan: the patented Lactobacillus HJ1, developed by Hitoshi Nakamura — microbiologist, H&J Corporation founder, and author of three authoritative books on lactic acid bacteria, including an Amazon Japan No. 1 bestseller.

What makes HJ1 different from conventional probiotics is its heat-sterilised delivery mechanism. Rather than relying on live bacteria to survive digestion (a common challenge with most probiotic supplements), HJ1 is designed to work effectively post-sterilisation — delivering consistent results without the stability issues that plague live-culture formulas.

H&J Corporation holds itself to a standard most pet brands don't: the exact same HJ1 strain used in their human supplement range is applied to all pet formulations, under identical safety and quality protocols. Every product is manufactured to Japanese GMP (Good Manufacturing Practice) certification.

The H&JIN range at Pettomono includes:

  • H&JIN BARRIER — for immune support, systemic defence, and skin allergy management
  • H&JIN CLEAR — for gastrointestinal health and eye care

Human-grade standards. Formulated with your pet in mind.