Alpha-Androstenol
Nol โข Androstenol โข A-nol โข Anol โข Alpha-nol โข The Conversation Grease Pheromone โข 5a-androst-16-en-3a-ol
Overview
Androstenol (5a-androst-16-en-3a-ol), commonly called "Nol" or "A-nol" in the community, is the "friendly" pheromone -- associated with youth, approachability, and social openness. The community calls it "The Conversation Grease Pheromone" because of its remarkable ability to smooth social interactions and make conversation flow effortlessly.
Alpha-androstenol is produced by both men and women and is present in fresh male sweat, but it oxidizes to androstenone within about 20 minutes of exposure to air. It has a musky, sweaty aromatic scent that some describe as very similar to sandalwood.
This is widely considered the most universally useful pheromone molecule. A study at the University of Warwick found that both men and women exposed to androstenol rated women as sexier, warmer, and more attractive. Women also rated men wearing androstenol consistently higher on the attractiveness scale, while interestingly, men consistently downgraded other men wearing androstenol.
Alpha vs Beta Androstenol
| Property | Alpha (3a-OH) | Beta (3b-OH) |
|---|---|---|
| CAS | 1153-51-1 | 1157-94-4 |
| Effects | Social, friendly, fun | Deeper bonding, empathy, "truth serum" |
| Duration | Shorter (~4 hours) | Longer |
| Intensity | Lighter, surface-level | More profound, emotional |
| Best for | Parties, social events, groups | One-on-one, deep conversation |
Most commercial products contain alpha-androstenol. Beta-androstenol is associated with deeper emotional bonding and "truth serum" effects rather than casual friendliness (see separate beta-androstenol page). Androtics Direct products like Instant Openness (IO) and Instant Honesty (IH) reportedly contain differing ratios of alpha and beta androstenol, with IH being predominantly beta androstenol.
Pharmacology
What It Is
Alpha-androstenol (5ฮฑ-androst-16-en-3ฮฑ-ol) is a C19 androstene steroid with a double bond at C-16 and a 3ฮฑ-hydroxyl group. Molecular formula CโโHโโO, MW 274.44. It is the reduced form of androstenone โ same skeleton, but with a hydroxyl (-OH) at C-3 instead of a ketone (=O). The 16-ene double bond gives it moderate volatility and a characteristic musky/sandalwood scent.
Biosynthesis
Endogenous steroid present in fresh human sweat:
Testosterone โ DHT โ Androstenone โ Alpha-Androstenol (via 3ฮฑ-HSD reduction)
Critically, androstenol oxidizes back to androstenone within ~20 minutes of exposure to air. This is why fresh sweat smells friendly (androstenol) but stale sweat smells aggressive (androstenone). Commercial preparations in oil or DPG are stable against this oxidation.
Detection
Detected via VNO (primary pheromone pathway). The 16-ene double bond provides enough volatility for both VNO and some olfactory detection. The 3ฮฑ-hydroxyl group (vs androstenone's 3-ketone) is what creates the dramatically different social signaling โ friendly/approachable instead of dominant/sexual.
Oxidation Note
Fresh androstenol oxidizes to androstenone when exposed to air. This is why:
- "Fresh sweat" smells friendly (androstenol)
- "Stale sweat" smells aggressive (androstenone)
Commercial preparations in oil or DPG base are stable against oxidation. Always store androstenol products sealed when not in use.
Community Effect Profile
Multi-dimensional effect ratings from community reports. The shaded area shows variance (standard deviation).
Effects
Effects on Others (Targets)
- Increased approachability and comfort: People seem to enjoy your presence more and sometimes insist you stay and make conversation. You do not come off as a stranger with this on.
- Enhanced conversation flow: Conversation with strangers flows considerably easier, as if you have known them for a long time. Visibly enhances comfort in interactions.
- Fun and silliness: People laugh more constantly and with higher intensity when you throw jokes. The mood can resemble "drunken silliness" at moderate doses.
- Women initiate contact: Women exposed to androstenol are more likely to strike up conversations and are more friendly and receptive to male-initiated contact. Creates talkativeness in females.
- Youthful, healthy, vital perception: Particularly attractive to younger women, who tend to prefer social pheromone profiles over heavy alpha/attraction-only mixes.
- Buffer effect: Takes the "edge" off aggressive molecules, allowing people to feel more excited about interacting with you. Without androstenol, you might be perceived as serious or intimidating.
Self-Effects
Like androsterone, androstenol is a positive allosteric modulator of GABAA receptors (confirmed by JPET research):
- Reduces social anxiety and self-restraint
- Increases sociability and randomness in speech
- Mood elevation
- Creates "tipsy" feeling at high doses; can increase effects of alcohol
- Greater ease in talking to strangers
Overdose Effects
Community member Fly So Hi documented overdose symptoms from his extensive testing:
- Headaches
- A feeling akin to "drunken tiredness"
- Impression of weakness -- making the wearer appear much less alpha
- Being seen as "low status" or childish
- Extreme giddiness; not being taken seriously
- People acting rude or treating you "like a leper"
- "Ghosting" -- nobody pays attention to you at all
- Being perceived as a "joker" (not recommended for professional environments)
Dosage Guidelines
| Level | Amount |
|---|---|
| Light | 5-15 mcg |
| Moderate | 15-40 mcg |
| Strong | 40-80 mcg |
Notes from community testing (Fly So Hi):
- Testing done with a 7% alpha-androstenol solution (1mg/ml): 700 mcg total in 10ml, yielding approximately 9.8 mcg per spray.
- 2-4 sprays (19.6-39.2 mcg) produced the ideal social effects: easier conversation, more laughter, sense of fun, comfort with strangers.
- Effective duration estimated at approximately 4 hours with 10% DPG fixative. Androstenol is more volatile than androsterone (similar molar mass at 274.4 g/mol vs 290.4 g/mol).
- Very forgiving molecule -- hard to overdose at typical doses, but very high doses (100+ mcg) can flip the effect from social to "invisible" or "low status."
- Excellent starting molecule for beginners.
- "Essential in any social. Great component on any mix." -- Fly So Hi
Combinations
Essential Stacks
- Androstenol + Androstenone: The classic stack -- adds friendliness and approachability to sexual/dominant aggression. Use 2:1 or 3:1 ratio (Nol:None) for balanced approach.
- Androstenol + Androsterone: "Approachable authority" -- 1:1 ratio works well for professional settings.
- Androstenol + Androstadienone: Warm bonding -- social friendliness layered with romantic connection.
- Androstenol solo: Pure social enhancement. Effective on its own for any social context.
Stacking Notes
- Most attraction and alpha pheromone formulas use alpha androstenol as a buffer to make the wearer more inviting and approachable.
- Nol can also balance the depression side effects of androstadienone-heavy mixes.
- Can be layered on top of virtually any other combination without conflict.
Application Tips
Best Application Points
- Neck / behind ears
- Wrists
- Chest (under clothing)
- Forearms
Timing
- Apply 15-30 min before social interaction
- Reapply every 4-6 hours if needed
- Morning application works for all-day wear
Avoid
- Applying immediately before close contact
- Using strong cover scents that mask effect
- Applying to clothing (oils can stain)
Have experience with Alpha-Androstenol? Share your dosage notes in the Community tab.
Share Experience โResearch Overview
Scientific studies and research related to Alpha-Androstenol. Search PubMed for CAS 1153-51-1 for more studies.
Related Articles on Pheromaxxing
Guides, science articles, and techniques that discuss Alpha-Androstenol.
Recognizing and Recovering from Pheromone Overdose
Stacking Principles: Combining Pheromones Effectively
Olfactory vs VNO: Parallel Detection Pathways
GABA-A Receptor Modulation by Neurosteroids
Do Human Pheromones Exist? The Scientific Evidence
How Pheromones Affect Stress: Cortisol and the HPA Axis
Androstane Nomenclature and Stereochemistry
VNO Receptor Genetics: V1R and V2R in Humans
Open Body Language: Non-Verbal Communication Fundamentals
Approach Strategies: Real-World Application
Outcome Independence: Detachment From Results
Understanding and Leveraging Social Proof
Pheromone Stacking: The Complete Ratios Guide
Key Findings
Summary of important research findings related to Alpha-Androstenol.
Research Summary Coming Soon
We're compiling peer-reviewed research on Alpha-Androstenol. In the meantime, use the search links above to find published studies.
Want to contribute? If you know of relevant studies, share them in the Community tab.
Research Context
Detection Studies
Research on how humans detect this compound, including olfactory receptor studies and perception genetics (e.g., OR7D4 variants).
Learn about detection โBehavioral Studies
Studies examining behavioral and psychological effects of exposure, including mood, attraction, and social behavior changes.
Browse studies โReceptor Biology
Research on receptor binding, including GABA-A modulation, steroid receptor interactions, and neural signaling.
Learn about receptors โKnow of relevant research?
Help us build the most comprehensive pheromone research database.
Share a Study โProducts Containing Alpha-Androstenol
Commercial pheromone products that include Alpha-Androstenol in their formula.
Buying Guide
Concentration Matters
Products vary widely in Alpha-Androstenol concentration. Higher isn't always better โ check dosage guidelines on the Effects tab.
Formula Synergy
Alpha-Androstenol is often combined with other molecules. The overall formula balance affects the final effect more than any single ingredient.
Vendor Reputation
Stick to established vendors with verifiable lab testing. Check vendor pages for community reputation and reviews.
DIY Option
For experienced users, raw Alpha-Androstenol is available from some vendors.
Raw Materials
Raw pheromone molecules can be purchased and diluted in carrier oils (DPG, alcohol, etc.) for custom formulations.
Note: DIY requires precise measurement equipment and knowledge of safe concentrations. Start with pre-made products.
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