Life Extension TMG 500mg

Our verdict

Life Extension TMG 500mg works out to $0.18 per serving of betaine (tmg), at 500mg per serving in capsule form. That puts it above the median of the 16 betaine (tmg) products we can price per dose, where the typical serving costs $0.13, a Value Index of 0.7 where the median product is 1.0. One container lasts 200 days at the label dose of 1 serving a day, about $5.40 a month. We could not verify a third-party certification for Life Extension in a public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.