Know what’s really inside your weight-loss supplement.
SourceLean is a no-hype guide to weight-loss supplements and the ingredients inside them — compare formulas, read the research behind each ingredient, and see honest label notes before you buy.
Browse by format
View all formulas →Whether you want a powder for your coffee, a once-daily capsule, or liquid drops — browse weight-loss formulas by the format that fits your routine.
Powders & Shakes
Mix-in formulas you add to coffee, water or a shake
Browse Powders & Shakes →Capsules & Tablets
Once- or twice-daily pills and tablets
Browse Capsules & Tablets →Liquid Drops
Sublingual and add-to-water liquid formulas
Browse Liquid Drops →Teas & Tonics
Brewed and liquid tonic formats
Browse Teas & Tonics →Patches
Transdermal and wearable formats
Browse Patches →Featured formulas
See all 29 →A few of the most-searched weight-loss formulas in our directory. Each profile breaks down the ingredients, label transparency and honest dose notes.
Java Burn
A tasteless powder designed to be stirred into your morning coffee.
LeanBiome
A probiotic-and-Greenselect capsule built around the gut-weight connection.
Lanta Flat Belly Shake
A powdered metabolic shake built around mangosteen and a GLP-1 angle
Compare head-to-head
All comparisons →Torn between two formulas you’ve seen advertised? These side-by-side breakdowns weigh ingredients, label transparency, doses and price so you can decide with clear eyes.
Java Burn vs Tea Burn
Two tasteless metabolism powders — one for coffee, one for tea. Which fits your routine?
Compare →Ikaria vs Okinawa vs Nagano
The three big metabolic tonic drinks, side by side on ingredients and transparency.
Compare →Liv Pure vs HepatoBurn
Two liver-support fat-loss capsules built on milk thistle and berberine — how they differ.
Compare →CitrusBurn vs VolcaBurn vs Ignitra
Four thermogenic fat-burner capsules — stimulants, doses and clarity compared.
Compare →Metabo vs KeySlim vs Viva Slim
Three liquid weight-loss drops compared on doses, clarity and price.
Compare →LeanBiome vs Trimology
Gut-microbiome weight capsules compared — probiotics versus prebiotic fibres.
Compare →How SourceLean works
1 · Start with a formula or ingredient
Search a product you’ve seen advertised, or start from an ingredient you’re curious about — everything is cross-linked.
2 · See what’s really inside
Every formula lists its ingredients, the doses research uses, and an honest note where the label doesn’t disclose amounts.
3 · Decide, then buy at the source
When you’re ready, we link you straight to the official site — no inflated claims, no countdown timers.
Why people use SourceLean
Weight-loss focused
We cover one thing — weight-loss supplements — so every formula and ingredient guide is relevant to your goal.
Ingredient intelligence
In-depth pages on key compounds: what they do, the doses used in research, and which formulas contain them.
Label transparency
We flag proprietary blends and undisclosed doses instead of pretending every product is fully transparent.
Safety context
Plain-language notes on interactions, cautions, and who should talk to a doctor first.
Clear comparisons
Structured, side-by-side information so you can weigh formulas without wading through marketing hype.
No hype
No inflated promises and no pressure — just structured information and a link to the official site.
Start with the ingredient
Wondering whether an ingredient actually helps with weight? Open its profile to see what it does, the doses used in research, how to take it, and which formulas contain it.
Guides & articles
All articles →Plain-English explainers on what actually works, how to read a label, and how to choose — written in the same no-hype voice as the rest of the site.
Do weight-loss supplements actually work?
What the research really supports — and what no pill can do.
Read →How to read a supplement label
Serving sizes, doses, and the proprietary-blend trick to watch for.
Read →Ingredients with the strongest evidence
The compounds with genuine human research, and the realistic effect of each.
Read →Best weight-loss supplements of 2026
An honest, no-hype breakdown by format and goal — not an affiliate ranking.
Read →Setting realistic expectations
What supplements can and can’t do, and how long results really take.
Read →Drops, teas, patches or powders?
Capsules, powders, tonics, drops or patches — how to pick the right format.
Read →A note on how to read this site
SourceLean provides educational information about weight-loss supplements and their ingredients. Our clarity scores measure label transparency — how clearly a product discloses its ingredients and doses — not effectiveness. Supplements are not a substitute for a balanced diet, physical activity, or medical care, and results vary from person to person. Always talk to a healthcare professional before starting a new supplement, especially if you are pregnant, breastfeeding, taking medication, or managing a health condition.
Stay informed. Choose well.
Weight-loss ingredient explainers and formula breakdowns — delivered occasionally, never spammy.
Affiliate disclosure: SourceLean is reader-supported. When you buy through links on this site, we may earn a commission at no extra cost to you. Checkout is always handled on the official product website.