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Finasteride + KLOW combo for hair & run recovery – any timing tips?

Posted by runner_aaron in Protocols & Stacks - 12 points, 6 comments.

I’ve been on 1 mg finasteride daily for hair loss for about six months, and it’s stopped the shedding. At the same time I’ve started the KLOW stack for tendon recovery after pushing the 100‑km weekly run. 5 mg 2–3×/week.

I inject against my thigh before bed for GHK‑Cu and BPC, and TB‑500 in the arm early morning. I reconstitute each with 1 ml sterile saline, keep them in the fridge, and use a fresh syringe each time. I’m wondering if the finasteride affects any of the peptide uptake or if there’s a better time to take the finasteride relative to the injections.

Also, would spacing the KLOW injections a few hours from the finasteride help with any potential interaction? Any experience with this combo, or safety notes on mixing a systemic 5‑α‑reductase inhibitor with a local peptide regimen?

Comments

  • greg208: I’m not a pharma pro but from my own experience with finasteride for hair loss, it’s an oral systemic drug that sits in the bloodstream, so it shouldn’t alter how a local peptide like GHK‑Cu or TB‑500 gets into the tissue where you inject. In practice I’ve kept the finasteride pill at night, right before bed, and done the thigh injections around the same time, and the knee‑run recovery seemed fine. If you’re worried about any overlap, giving the finasteride two to three hours apart from the inje
  • grinder265: Ngl, i’ve spaced them a few hours apart just to be safe, take finasteride at night, do injections in the morning. Haven’t noticed any issues, but if you’re worried, a buffer might help. Monitor for any weirdness in recovery or hair changes.
  • sleep_coastal: Anecdotally, i took finasteride at night too, same time as ghk-cu. No weird reactions, but i spaced klow doses a few hours from injections just in case. Haven’t noticed any negative effects on recovery or hair, but if it bothers you, go with the buffer time.
  • runner_aaron: Thanks for the tip on spacing, seems like a safe play. I’ve been doing KLOW injections in thigh/arm same day as finasteride at night. Any chance spacing made a difference for your tendon recovery or hair? Curious if the GBKC-U/C and BPC timing (before bed) interacts differently than morning TB-500.
  • runner_aaron: Thanks for the tip, tbh. Spacing them out does seem logical, I usually take finasteride at 10pm after dinner. Wonder if spacing is still needed with TB-500 since it’s a different peptide? Grinder265, mind checking if others have issues with that combo?
  • runner_aaron: Thanks for the reply, greg208. You’re right, my finasteride’s at night, injections same time, no issues yet. But since I’m doing morning TB-500 shots too, should I push that further from the finasteride? Like 3 hours after pill or before? Never had hair irritation, but curious if the timing matters for absorption or something.

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