Endo-met GB-3 (90 Tablets) — Bile Acid & Copper Detox Support by Endo-met Labs
Curated by Michelle Tonkin ND & Melissa Tonkin CNC | 20+ Years Clinical Experience | Hair Tissue Mineral Analysis Specialists
Last Updated: September 2026 | Book a Free 10-Minute Consultation
What Is Endo-met GB-3?
GB-3 by Endo-met Laboratories is a unique bile acid and copper detoxification support formula developed specifically for use within Hair Tissue Mineral Analysis (HTMA)-guided protocols. GB-3 contains a proprietary blend of bile salts, digestive support factors, and nutrients that support the healthy flow of bile, assist the liver and gallbladder in processing and excreting accumulated copper, and support the breakdown of fats and fat-soluble toxins.
Michelle Tonkin ND frequently recommends GB-3 as part of her HTMA-based mineral rebalancing protocols — particularly for clients showing elevated copper, sluggish gallbladder function, or impaired fat digestion.
Key Benefits
- ✅ Supports copper detoxification — critical in HTMA-guided mineral balancing
- ✅ Bile acid support for improved fat digestion and fat-soluble nutrient absorption
- ✅ Liver and gallbladder drainage support — promotes healthy bile flow
- ✅ Supports excretion of fat-soluble toxins via bile pathway
- ✅ Designed for HTMA protocols — works synergistically with Endo-met mineral supplements
- ✅ May reduce symptoms associated with copper toxicity (anxiety, fatigue, estrogen dominance)
Who Needs GB-3?
GB-3 is particularly relevant for those with:
- Elevated copper on HTMA (Hair Tissue Mineral Analysis)
- Low bile production or sluggish gallbladder function
- Difficulty digesting fats or fat-soluble vitamins (A, D, E, K)
- Symptoms of copper toxicity: anxiety, depression, estrogen dominance, brain fog, fatigue
- Thyroid conditions associated with copper imbalance
- Hormonal imbalances potentially linked to copper dysregulation
Important: GB-3 is most effective when used as part of a comprehensive HTMA program. Book a free consultation with Michelle Tonkin ND to discuss whether HTMA and GB-3 are right for you.
Key Ingredients
GB-3 contains Endo-met's proprietary blend including:
- Bile acids/bile salts — support healthy fat emulsification and bile flow
- Pancreatin — comprehensive digestive enzyme support
- Betaine HCl — supports gastric acid and protein digestion
- Nutritional cofactors — support liver function and copper metabolism
What Is HTMA and Why Does It Matter?
Hair Tissue Mineral Analysis (HTMA) is a non-invasive test that measures mineral levels in the body over a 3-month period. It reveals important imbalances — including excess copper — that standard blood tests often miss. Michelle Tonkin ND and Melissa Tonkin CNC are experienced HTMA practitioners who use this test to create highly personalized supplement protocols using Endo-met products.
Frequently Asked Questions
Q: Do I need an HTMA test to take GB-3?
A: While GB-3 can be used independently for general bile support, its most powerful application is within an HTMA-guided protocol. We recommend a consultation to determine if GB-3 is appropriate for you.
Q: Is GB-3 safe to take long-term?
A: Under practitioner guidance, yes — but dosing and duration should be calibrated to your individual mineral status via HTMA retesting every 3–4 months.
Q: What are symptoms of copper toxicity?
A: Common signs include anxiety, depression, brain fog, fatigue, PMS, estrogen dominance, and thyroid issues. These can have many causes — proper testing is essential.
Shipping & Purchase Details
- 🚚 Free shipping on orders over $50
- 💰 10% off orders $100+ with code DISCOUNT4U
- 📦 Ships within 1–3 business days
- 🏆 Authentic Endo-met Laboratories product — HTMA-specialized sourcing
Related Endo-met Products: Thyro Complex | Megapan | Limcomin
⚠️ Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare practitioner before use.

