A supplement catalog, arranged by body system
Know what you're putting in before you take it.
Pick the part of your body you're thinking about. We'll show you the established brands people actually buy for it, read the Supplement Facts panel line by line, compare the doses to the research, and date the price. No hype, no house brands, no pressure.
The system map
Jump to a system- Gut & digestion2 entries
- Sleep & mind2 entries
- Joints & movement2 entries
- Heart & energy2 entries
- Skin, hair & bone2 entries
- Hydration & daily basics1 entry
Systems are a way to browse, not a diagnosis. A product listed under a system is what its seller markets it for, not something we have shown it does.
The catalog
11 entries · established brands · sold on Amazon · label, evidence and price checked
Every product below is an established brand with a real Amazon listing we opened ourselves. The one-line summaries say what the entry checks, not what the product does.
Gut & digestion
Fiber and probiotic products: what a serving really contains, and what the strain and dose research says.
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GutGarden of Life Dr. Formulated Probiotics Once Daily
A one-capsule probiotic: the 14 species named on the label (and the strain codes it leaves out), what the CFU count means, and how it should be stored.
CapsulesRead entry -
GutMetamucil Psyllium Fiber Powder
Psyllium husk powder: grams of fiber per serving, the sugar and sugar-free versions side by side, and the water it needs.
PowderRead entry
Sleep & mind
Evening products: the doses on the label versus the doses used in studies, and the timing the label itself recommends.
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Sleep & mindNatrol Melatonin 5 mg Fast Dissolve
A dissolving melatonin tablet: how 5 mg compares to the amounts studied, what else is in the tablet, and label timing.
TabletsRead entry -
Sleep & mindThorne Magnesium Bisglycinate Powder
A magnesium powder: elemental magnesium per scoop, what "bisglycinate" means on a label, and the NSF Certified for Sport listing we looked up ourselves.
PowderRead entry
Joints & movement
Long-running joint products with genuinely mixed research, read against the exact amounts on their labels.
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JointsDoctor's Best Glucosamine Chondroitin MSM
Three classic joint ingredients in a four-capsule serving: the per-serving amounts, the shellfish source, and where the evidence is mixed.
CapsulesRead entry -
JointsQunol Turmeric Curcumin
A turmeric capsule: how much curcuminoid is on the label, what an "absorption" claim rests on, and who should check with a pharmacist.
CapsulesRead entry
Heart & energy
Fish oil and CoQ10: the numbers that matter on the label (EPA and DHA, not "1200 mg"), and what the trials found.
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Heart & energyNature Made Fish Oil 1200 mg
A widely sold drugstore fish oil: why the omega-3 line, not the 1200 mg headline, is the number to read, plus the USP status.
SoftgelsRead entry -
Heart & energyQunol Ultra CoQ10 100 mg
A 100 mg CoQ10 softgel: what "ultra absorption" is based on, how it compares to study doses, and the statin question people ask.
SoftgelsRead entry
Skin, hair & bone
Collagen and calcium: what a scoop or tablet actually delivers, and how much of the marketing the research supports.
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Skin, hair & boneSports Research Collagen Peptides
An unflavored collagen powder: grams per scoop, the source animal, what "type I & III" means, and the seals named on the tub.
PowderRead entry -
Skin, hair & boneNature Made Calcium 600 mg + D3
A calcium-plus-D tablet: the calcium form, the vitamin D amount, how it adds up with a multivitamin, and the upper limits.
TabletsRead entry
Hydration & daily basics
Electrolyte mixes: sodium, sugar and potassium per stick, and when plain water does the same job.
How we look at a product
Same four checks, every entry
Read the label, not the box front
We copy the Supplement Facts panel line by line: the form of each ingredient, the amount per serving, the serving size and the "other ingredients."
Compare it to the research
We look for human studies on the named ingredient at the named dose, and say plainly when the evidence is mixed, thin or missing.
Check the seller and the seal
Every product here is sold on Amazon under a listing we opened ourselves. A certification only gets credited if we could confirm it, by exact name.
Date the price
Prices change. Every price we quote carries the date we saw it, and we never present one as current beyond that day.
Field Notes
Short, practical routines · one per body system
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How to Read a Supplement Facts Panel, System by System
The five lines that matter on any label, and what to look for depending on which part of your body you're shopping for.
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A Daily Routine for a Calmer Gut
Meal timing, fiber, water and walking: the unglamorous habits that come before any powder.
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An Evening Routine for Better Sleep
Light, caffeine cut-off, a consistent wind-down and where (if anywhere) a supplement fits in.
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Joint-Friendly Movement Habits for Desk Workers
Short, frequent movement breaks that hold up in the research, and how to actually remember to take them.
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Hydration Habits That Stick
How much water most adults actually need, when an electrolyte mix earns its place, and cues that make the habit automatic.
The Atlas Letter
One email when we add an entry or a field note. No daily blasts, no offers, no hype.
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