Same supplement.
Different brand.
Big difference.
We grade every recommendation by the human trial data behind it, then say plainly who it's for and who should skip it.
- Reviewed
- Researched
- No hype
- Just facts
reviews.
Real data.
What people search for most
The specific questions readers arrive with, each pointing at the guide that answers it.
- Creatine dosage
- Does creatine cause bloating
- Vitamin D3 dosage
- Vitamin D deficiency levels
- How much omega-3 per day
- Magnesium glycinate vs citrate
- Best magnesium for sleep
- Ashwagandha benefits and dosage
- BPC-157 vs TB-500
- Best peptide company
- Third party tested peptides
- BioLongevity Labs review
- Limitless Life Nootropics review
- Best documented research peptides
Most supplement content skips straight to the conclusion.
human trials behind creatine alone, the most studied supplement there is
evidence grades, from strong human RCT data down to weak preliminary work
affiliate deals that decide which supplement gets a favourable grade
How we work
Better questions, then healthier choices.
Graded, never ranked
Every guide carries a grade based on trial count, consistency, and effect size. Popularity does not move it. When the evidence is weak, the grade says weak.
Dosing that matches the trials
A "1000mg" fish oil softgel is often 300mg of what actually works. We print the difference.
Who should skip it
Interactions, conditions, and the cases where the research simply does not apply to you.
Brands we've reviewed
The products, and what we could actually verify
$99.97
$164.97$84.97
$274.97
$259.97
$129.97
$94.97
$109.97
$99.97
$99.97
$79.97
$55.97
Top picks, ranked by paperwork
Scored on what we can actually check: public Certificates of Analysis, batch-level testing, and whether the price is visible without an account.
Start with the ones people ask about most
All guidesEvidence-based supplement reviews, in plain English
The Good Supplements publishes evidence-based supplement reviews and dosage guides for the products people actually search for. That means the creatine monohydrate dosage that trials used rather than the one on the tub, what vitamin D3 dosage makes sense once you know your blood level, how much EPA and DHA a fish oil supplement really needs to contain, and whether magnesium glycinate or citrate absorbs better.
Every guide carries an evidence grade. Strong means multiple randomized controlled trials agree. Weak means the claim is running ahead of the data, and we say so rather than hedging. You can read how we grade supplement evidence in full.
Supplement brand reviews and peptide vendors
Alongside the compound guides we review the brands selling them. Our BioLongevity Labs review and Limitless Biotech review, covering the vendor formerly known as Limitless Life Nootropics, check each company's purity testing, Certificate of Analysis transparency, pricing and returns, claim by claim. If you are comparing suppliers, start with how to vet a peptide vendor or the ranked top picks by documentation.
One caveat worth stating up front. Research peptides such as BPC-157 and TB-500 have no approved consumer form, and we cover them as research chemicals rather than supplements you can legally take. The compound guides are the place to start if you want something with real human trial data behind it.
Already taking something? Find out where it stands.
Every guide names the trial dose, the side effects worth knowing, and exactly who the research says should be careful.
hype.See all guides