>(3) Results: Compared with a placebo, spermidine supplementation significantly increased spermine levels in the plasma, but it did not affect spermidine or putrescine levels. No effect on salivary polyamine concentrations was observed.

Which might be fine if the metabolite is actually the responsible molecule.

Order? Considering the source of Spermidine, might be easier to get it for free from your local glory hole

The 15mg/d they used in that study is just the standard dietary intake (top end, europeans). Looked a number of other studies that also used just regular intake levels as "supplementation". Weird how they all stay small when the no observable adverse effects level is much higher.

Helpful reminder that mice lie, monkeys exaggerate, and ferrets are not people (surprisingly enough).

No you're supposed to swallow. The pill

The cult of techbro science demands that you do so immediately without reading any prior research into the topic.

Regretting reading these comments suddenly

Even if it did, you'll get at least as much from eating about 60g of wheat germ as an unprotected sex worker would get if they had new clients every 3.5 minutes for 8 hours.

The study talks about how, "declining egg quality in older mice can be reversed with a dietary supplement". Sooo... unless you have a very specific genetic condition you are not going to be able to self dose and replicate the study.