Metabolic research
Berberine
Cautious evidence — optional, not a required protocol item.
Weakly evidenced as a longevity product or as a stand-in for metformin. Some metabolic studies exist; this is not a prescription, not off-label metformin, and not a treatment for diabetes. People researching metformin-and-aging headlines sometimes look here for education only. Discuss drug interactions with a clinician. Skip in pregnancy.
$24.99 per bottle
Educational serving: 1 capsule (~500 mg) daily. Pack 60 servings ÷ 2 daily = 30 days of supply (Every 30 days). Not a prescription.
Weakly evidenced. Not a metformin replacement. Educational serving only.
VitaLonga sells this catalog as recurring bottles. Educational daily servings size the refill interval (days of supply = pack servings ÷ daily servings). That interval is not a prescription. Dietary supplements are not intended to diagnose, treat, cure, or prevent disease (DSHEA). We are not a pharmacy.
Also on iHerb (affiliate, first order only — not fulfillment)
Optional iHerb links are affiliate discovery only (typically first-order commission). They are not VitaLonga checkout or fulfillment. Recurring bottles are sold by VitaLonga through Stripe. We do not use ShipBob or Amazon checkout.