About Cancer Prevention Lab

We started this site after spending months digging through clinical trial data on cancer prevention and repurposed treatments, and being unable to find a single resource that actually told us what the evidence said, without selling us something.

What This Site Is

An evidence review site. We read clinical trials, meta-analyses, and systematic reviews and translate them into honest assessments. Every compound, intervention, and test gets an evidence grade. We explain the methodology behind the grade so you can evaluate it yourself.

What This Site Is Not

• Not a medical practice. We don't give medical advice.
• Not a scare-mongering site. We follow the evidence wherever it goes, including when it points to "this doesn't work" (see: metformin, GcMAF).
• Not a conspiracy site. We believe in peer review, randomized trials, and statistical significance.

Our Research Standards

We prioritize evidence in this order:

1. Phase II+ RCTs in humans with positive signal (Grade A)
2. Phase I/II human data or strong epidemiology with replicated findings (Grade B)
3. Preclinical data only (animal/in vitro) — interesting mechanism but unproven in humans (Grade C)
4. Mixed or weak RCT data after rigorous trials (Grade D)
5. Retracted research, disproven claims, or actively harmful compounds (Debunked)

"Kills cancer in a petri dish" gets a Grade C at best. Mechanism + epidemiology + preclinical is not enough. The bar for Grade A is human trial data showing meaningful efficacy.

Affiliate Disclosure

Some links on this site may be affiliate links to products mentioned in our research (supplements, test kits). If you purchase through these links, we may earn a small commission. This never influences our evidence grades or recommendations. We'll recommend something whether or not it has an affiliate program, and we'll tell you when something doesn't work even if we earn money from the affiliate.

Medical Disclaimer

Nothing on this site is medical advice. We are researchers, not doctors. Before making any changes to your health regimen, especially starting new medications or supplements, consult with qualified healthcare professionals who know your medical history. Drug interactions exist. Contraindications exist. Individual variation exists. The fact that a drug is FDA-approved for one use does not make it safe for all uses at all doses.