Start with the compound you're researching
Every page carries a badge telling you whether that compound is sold here as its own strip, reaches you only inside a blend, or is a topic rather than a product — before you read a word. Shelves below, 20 pages in total.
Start here — the format and the sourcing
What a sublingual film is, how it compares with an injection, how to vet any seller in this category, and how compounds get combined. Read one of these before any compound page.
Recovery, repair and skin
The most-searched corner of the category. Two of these four compounds are not sold on their own anywhere on this site — the pages say so at the top.
Energy, longevity and metabolism
Three molecules that get grouped together commercially and work nothing alike. Each page says which is a peptide and which is not.
Focus, mood and sleep
All three compounds here reach you only inside a blend. The pages cover what the research establishes, including how thin the Western literature is.
Performance, immune and intimacy
Compounds with real clinical histories attached to forms and doses that are not what a dietary supplement strip is. The pages draw that line explicitly.
Buying for a business
The reference for clinics, med-spas and resellers evaluating the category rather than buying a box.
How a film under the tongue actually delivers
The tissue under the tongue is thin and highly vascular, so part of what dissolves there can cross directly into circulation; the rest is swallowed. How that split works — and why molecule size matters, and why no honest brand quotes an absorption percentage — is a page of its own.
The COA is the whole ballgame
In a category with a gray market, the biggest risk isn't the compound — it's not knowing what's in the thing you bought. A real certificate of analysis ties a lot number to an identity test, a purity result with the method stated, microbial and heavy-metal screens, and a named lab with a date. Anything less is a prop. Ours are published per lot on the COA lookup page — including the lots for which nothing has been published yet, which are listed rather than hidden.
- 1LOT №matches the number on your box
- 2IDENTITYmass spec or HPLC, named
- 3PURITYa result with its method
- 4LAB + DATEanonymous reports don't count
The eight words that unlock every page here
- Peptide
- A short chain of amino acids — smaller than a protein, bigger than most drugs.
- Sublingual
- "Under the tongue" — the thin, vascular tissue an oral film dissolves against.
- Transmucosal
- Absorption across a mucous membrane, bypassing the stomach entirely.
- First-pass metabolism
- The liver's processing of anything absorbed through the gut, before it reaches circulation.
- Reconstitution
- Mixing freeze-dried powder with sterile liquid before injection — the step strips eliminate.
- COA
- Certificate of Analysis — a lab report tying test results to a specific production lot.
- cGMP
- Current Good Manufacturing Practice — the FDA's baseline for how facilities operate and document.
- Structure/function claim
- The only kind of claim a supplement may make: supporting a normal body process — never treating a disease.
Educational content. This content is for educational purposes only and is not medical advice. Consult a licensed healthcare provider before starting any new product.
FDA disclosure. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.