Ingredient explainer

Androstanone

Evidence: Anecdotal

The fully saturated analogue of androstenone (5α-androstan-3-one) that the pheromone community rates as a dominance-and-charm molecule.

Androstanone is androstenone with the double bond taken out. Where androstenone is 5α-androst-16-en-3-one, androstanone is the fully saturated 5α-androstan-3-one — same 3-ketone, no 16-ene. The pheromone community rates it highly as a “social dominance and charm” molecule, and its close kinship to the most-studied human pheromone candidate is the reason to take those reports seriously while keeping the caveats in plain view.

What it is, structurally

Androstanone is a saturated androstane ketone: 5α-androstan-3-one, C19H30O. Removing androstenone's 16,17 double bond gives a fully saturated ring system with the ketone still at carbon 3. One naming caution belongs here — some sources use “androstanone” for the 17-ketone isomer, 5α-androstan-17-one (CAS 963-74-6), a different molecule. The dominance-and-charm framing points to the 3-one analogue of androstenone, which is the one described on this page.

CAS number and chemistry

The CAS Registry Number for 5α-androstan-3-one is 1224-95-9. Molecular formula C19H30O, molar mass 274.4 g/mol, PubChem CID 102028. If a product simply says “androstanone,” it is worth confirming which isomer you are getting: the 3-one here versus the 17-one (CAS 963-74-6) are genuinely different compounds with the same casual name.

What wearers report

In community field reports androstanone is described much like androstenone — a dominance and social-presence molecule — but several users call it smoother or less overtly sweaty than androstenone's harsher edge. These are self-reports rather than trials, and any scent applied on purpose carries some expectancy. But the reports are consistent in character, and the molecule's near-identity to androstenone gives them a plausible footing.

How it relates to androstenone

Saturating the 16-ene changes the shape and the smell, and probably how strongly the molecule engages the same receptors androstenone acts on. Two honest possibilities follow: androstanone may engage androstenone-like pathways directly, or it may sit near it in the skin's steroid pool and behave as a close analogue. What does not exist is a dedicated human trial of androstanone as a worn signal — its credibility is borrowed from androstenone plus consistent field reports, which is a reasonable but unproven basis.

Does any pheromone product use it?

Androstanone appears in dominance-leaning enthusiast blends, usually alongside androstenone rather than instead of it. If you want the molecule with the actual research behind the dominance claims, that is androstenone; androstanone is the smoother cousin people reach for to soften the edge. Our best pheromone cologne picks flag which formulas lean dominant.

The honest read

Androstanone is a well-defined saturated analogue of the best-studied human pheromone candidate, with consistent community reports of a dominance-and-charm effect and a plausible mechanism by association. What is missing is direct evidence for androstanone itself. Wear it as a reasonable, better-smelling stablemate to androstenone — promising by kinship and report, not proven on its own.

How to use it, and what to expect

Dominance-leaning molecules are dose-sensitive, and androstanone is no exception. The community lore around its cousin androstenone is a useful warning: overapply a dominance steroid and the read can flip from “commanding” to “aggressive” or simply “off.” Start with the smallest amount, on warm skin, and judge the social response before you scale up.

In practice androstanone is usually a supporting note rather than a solo act. It pairs naturally with the smoother, musky androstenol to take the hard edge off, and sits inside a real fragrance so it is not worn raw. If you want the molecule with the actual dominance research behind it, that is still androstenone; androstanone is the better-smelling stablemate people add to round it out.

FAQ

What is androstanone?

The saturated analogue of androstenone: 5α-androstan-3-one (CAS 1224-95-9). Same 3-ketone, no 16-ene double bond.

Is androstanone the same as androstenone?

No — androstenone has a 16-ene double bond and the bulk of the research; androstanone is its fully saturated cousin, rated similarly by the community but not studied directly.

Which isomer is 'androstanone'?

This page uses 5α-androstan-3-one, the analogue of androstenone. Be aware some sources mean 5α-androstan-17-one (CAS 963-74-6) by the same loose name.

Can you use too much androstanone?

Very likely, yes — dominance steroids like the androstenone family are widely reported to backfire when overapplied, reading as harsh rather than confident. Less is more; a light application on warm skin is the sensible default.

What does androstanone smell like?

Faint and slightly musky-animalic, generally described as smoother and less overtly sweaty than androstenone — part of why people reach for it to soften a dominant blend.

Is androstanone found in the body?

Saturated androstanes of this type occur in trace amounts as steroid metabolites, but androstanone is far less prominent in human odour than its unsaturated cousin androstenone . Most of its interest is as a synthetic dominance-note analogue rather than a major natural signal.