Skip to main content

Up to 15% off products when you checkout or sign up


  • Gluten free

  • Soy free

  • Vegan

  • Non-GMO

  • Wheat free

  • Corn free

  • Milk free

  • Yeast free

  • Sugar free

  • Casein free

  • Supports healthy stomach acid production for optimum digestion.
  • Provides safer antioxidant benefit to address oxidative stress.
  • Promotes healthier cellular metabolism and histidine-histamine balance.



Suggested Use:
Take 1 capsule 30 minutes before meals or as directed by your healthcare practitioner

Serving Size: 1 Capsule

Amount Per Serving:
L-Histidine … 650mg
Vegetable Capsule(Plantcaps®) … 120 mg
Medium chain triglycerides (MCT)** … 8.5 mg    
Maltodextrin (Tapioca) … 8.5 mg    

Other Ingredients: None.  

**From palm


Pregnant and nursing mothers need to check with their health professional before taking supplements

L-Histidine Guard

PERQUE®

$46.99

Sign up for exclusive store pricing

Shop the entire wellness catalog, held to a higher standard

Shop practitioner-grade products, each meeting the same bar for quality through Fullscript's standards.

Powered by
Sign up to shop
  • Verified

    Sourced straight from the brand — no resellers or fakes

  • Enhanced testing

    Select products are tested in-house — get exactly what the label promises

  • Stored and shipped

    From certified facilities, to protect product integrity