Condition
Skin dryness
7 compounds were checked against skin dryness. None produced a gradeable row.
Last updated
Recorded absences
4 compounds are listed here without a rung. Each row exists to mark a distinction a reader would otherwise draw wrongly, and each says what is missing rather than leaving the compound off the page.
-
Hyaluronic Acid Binding Peptide
No rung — nothing on file to grade Not approved for this condition
The one study pointing this way (PMID 36448643) designed a hyaluronic-acid-binding peptide to carry hyaluronic acid through mouse skin and confirmed it reached the dermis. It measured penetration and tolerability, not hydration, and no skin condition was assessed.
-
Melanotan I
No rung — nothing on file to grade Not approved for this condition
No study has measured hydration or trans-epidermal water loss for this compound.
-
Myristoyl Pentapeptide-17
No rung — nothing on file to grade Not approved for this condition
No study has measured hydration or trans-epidermal water loss for this compound.
-
Snap-8
No rung — nothing on file to grade Not approved for this condition
Trans-epidermal water loss was reduced in one multi-ingredient microneedle-patch study, but the patch backbone was hyaluronic acid, a humectant on its own, so the measurement says nothing about the peptide. No study of the peptide alone has measured hydration.
Checked, and nothing recorded
3 compounds were checked against skin dryness and produced no gradeable row.
- Silk Peptides — checked, no row on file
- Tripeptide-29 — checked, no row on file
- Wheat Peptides — checked, no row on file
A compound is here because someone looked and the sources did not support a row — not because nobody looked. Under the rubric, uncertainty resolves to no row, and a row resting on a vendor page or a clinic blog is worse than no row at all.
What this page does not say
It reports what was measured, in whom, and how directly. It does not say what to take or at what dose, and a row here is a record of a study rather than a reason to use anything. Every rung links to the rubric that assigned it.