Use this calculator to plan how many Thalacy Spermidine Wheat Germ Extract capsules and bottles you’ll need for a given time period, and see the estimated cost based on the current 60-count bottle price.
Spermidine Dosage & Cost Calculator
Based on the labeled dose options for Thalacy Spermidine Wheat Germ Extract 13mg and the published 60-count bottle at $81.99.
Estimate only – based on the current listed price of the 60-count Thalacy Spermidine Wheat Germ Extract 13mg bottle. Actual Amazon price can change; check the live price before buying.
Why no height/weight input? Unlike per-kg supplements (creatine, protein), Spermidine has no published bodyweight-adjusted dosing in the research behind it. This calculator doesn't fabricate a per-kg formula that doesn't exist in the literature.
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This product’s label serving is 1 capsule daily, providing 13 mg of spermidine from 1,300 mg of wheat germ extract.
It’s important to flag a large gap here between the label dose and the clinical research. The most rigorous human trial of spermidine — a 12-month, randomized, double-masked, placebo-controlled trial of 100 older adults with subjective cognitive decline — used a wheat-germ-derived supplement providing only 0.9 mg of spermidine per day (via six 125 mg capsules), and found improvements in memory performance versus placebo [1]. This product’s single-capsule dose is roughly 14 times higher than the dose actually studied in that trial. We’re citing the trial because it’s the best human evidence for spermidine and cognition, not because it validates this product’s much higher dose — there’s no published research we’re aware of testing spermidine at 13 mg/day specifically.
As with the other calculators on our network, there’s no published bodyweight-adjusted dosing for spermidine, so this tool plans by a fixed daily amount rather than your height or weight.