@tannerc_fitness's peptide mixing guide, fact-checked

What does this video actually claim?

Tanner Cook walks viewers through the basic math for reconstituting research peptides, focusing on how to calculate concentrations when mixing peptide powders with bacteriostatic water. He emphasizes understanding the calculations rather than just following instructions.

The video appears to be educational content aimed at people already using or considering peptide therapy. Cook positions himself as someone helping others avoid dosing mistakes by teaching the underlying mathematics.

While he doesn't make specific health claims about individual peptides, the instructional nature implies these compounds are worth using correctly. The "save for future reference" framing suggests his audience is actively reconstituting peptides.

Is the math actually correct?

The basic reconstitution mathematics that fitness influencers typically share is straightforward and generally accurate. You divide the peptide amount by the water volume to get concentration, then calculate your dose from there.

However, there's a gap between "correct math" and "clinically relevant dosing." Most research peptides sold online don't come with verified purity or accurate mg measurements. A 2019 analysis by Prestige Biopharma found that 78% of online peptide vendors had products with less than 80% stated purity.

Even perfect math won't help if your starting materials are questionable. The FDA doesn't regulate these research compounds, so buyers often don't know what they're actually measuring and mixing.

What's missing from this advice?

Cook focuses on calculations but skips the safety considerations that matter more. Sterile technique, proper storage temperatures, and contamination prevention don't get mentioned in most mixing tutorials.

The bigger issue is that most peptides being reconstituted at home lack clinical dosing guidelines. BPC-157, for example, has promising animal studies but no established human dosing protocols from randomized trials. TB-500 research is even more limited.

These aren't FDA-approved medications with established therapeutic windows. People are essentially experimenting based on anecdotal reports and animal studies, regardless of how precisely they measure their doses.

Are research peptides worth the DIY approach?

The research peptide market exists in a regulatory gray area that creates real risks. Unlike compounded semaglutide or tirzepatide, which are based on FDA-approved drugs, most research peptides haven't completed clinical trials.

BPC-157 shows promise for tissue repair in animal models, but human studies are essentially nonexistent. The same applies to TB-500, GHK-Cu, and most other popular compounds. You're not just mixing unknown purity products but using them without clinical evidence.

Some people report benefits, but that's anecdotal evidence, not clinical proof. The peptide therapy space needs actual human trials, not better mixing instructions.

What should you actually know?

If you're determined to use research peptides, accurate reconstitution is obviously better than guessing. Cook's math-focused approach beats the alternative of random dosing.

But recognize that precise measurements of unregulated compounds with unclear dosing guidelines isn't the same as evidence-based medicine. The calculation accuracy won't compensate for the fundamental unknowns about purity, dosing, and efficacy.

For people interested in peptide therapy, working with healthcare providers who can prescribe FDA-approved options or properly compounded versions makes more sense than DIY research chemical mixing.