Key Benefits

• Provides one gram of Chios mastic gum per serving.

• A plant-derived resin with a long history of traditional use.

• Sourced from Pistacia lentiscus trees native to Chios, Greece.

Mastica® Authentic Chios Mastiha provides one gram of Pistacia lentiscus var. Chia resin in a two-capsule serving. Mastic gum is a plant-derived resin traditionally harvested from Pistacia lentiscus trees on the Greek island of Chios, where it has been used for centuries. It contains natural aromatic and phenolic compounds and is recognised for its long-standing role in traditional practices.

Mastica® offers a straightforward way to include a defined amount of Chios mastic gum as part of a daily routine.

Allergy Research Group takes a deeper, more rigorous approach to hypoallergenic formulation, and that level of precision gives its supplements a higher standard of safety. Many brands limit “hypoallergenic” to the eight major allergens, yet Allergy Research Group excludes a far broader list, removing ingredients such as corn, sesame, yeast, and other less common triggers that can still cause issues for sensitive individuals. This commitment to purity ensures cleaner formulas, greater confidence, and consistent quality across every product.

Allergy Research Group was founded in 1979 by Stephen Levine, Ph.D., a biochemist driven to create clean, hypoallergenic supplements that even sensitive individuals could tolerate. Guided by his commitment to purity and scientific rigour, the brand pioneered evidence-based formulations that avoid unnecessary additives while delivering targeted, clinically relevant support. Their range includes condition-specific nutrients developed with meticulous testing and consistent quality standards. With over four decades of innovation—including introducing melatonin, 5-HTP, and other first-to-market ingredients—Allergy Research Group continues to empower healthcare practitioners and their patients with trusted solutions that help you feel confident in your daily wellness.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

Pistacia lentiscus var. Chia (Resin), Capsule Shell (Hydroxypropyl Methylcellulose), Bulking Agent (Microcrystalline Cellulose), Anti-Caking Agent (Magnesium Stearate), Anti-Caking Agent (Silicon Dioxide)

As a dietary supplement, take 1 capsule twice daily between meals, or as directed by a healthcare practitioner.

Additional Information:

Food supplements and foods sold by Healf should not be used as a substitute for a varied, balanced diet and healthy lifestyle.

If you are pregnant, breastfeeding, have a medical condition, or are taking any medications, please consult with a healthcare professional before use. Use products only if the seal is intact. Store in a cool, dry place, out of the reach of young children. Do not exceed the recommended daily intake.

We make every effort to ensure that product information on our website is accurate and up to date, but packaging and ingredients may occasionally vary from images shown on site. Please refer to the product label and contact Healf before use if you have any questions regarding your specific allergies or intolerances.