Is stacking Selank, progesterone, androsterone and Pinealon for social anxiety safe?

The short answer

Stacking androsterone, progesterone and Selank before a night out means taking three GABA-modulating compounds at once. Alcohol is a fourth, and the combination is additive — the same mechanism behind benzodiazepine-and-alcohol harm. Progesterone also opposes androsterone pharmacologically, so the stack partly cancels itself out.

Evidence tier: Tier 1–2 for the neurosteroid GABA-A pharmacology (established receptor studies and human sedation data); Tier 3 for Selank's anxiolytic effect; Tier 4 for Pinealon's acute cognitive effects, where no human data exists. Educational content, not medical advice.

The key points:

• Three items in this stack modulate GABA-A — androsterone via its neurosteroid metabolites, progesterone via allopregnanolone, and Selank as an anxiolytic.
• Alcohol is also a GABA-A modulator, and the setting is a social event. That's the risk nobody names.
• Progesterone is anti-androgenic — it works directly against the reason androsterone is in the stack.
• Pinealon has no human data for acute cognition or "social fluidity."
• Situational anxiolytic use before social events is the recognised pathway into dependence.

What is actually in this stack?

Evidence tier: 1–2 — established receptor pharmacology.

A widely-shared post described taking androsterone "for maximum male aura," progesterone "to delete anxiety," Selank for "further anxiolytic stacking," and Pinealon for "brain power and social fluidity" before going out. It framed this as a way to "socially delete autism."

Set the framing aside for a moment and look at the pharmacology, because the four compounds are not doing four different things.

Androsterone is a 3α-hydroxy androgen metabolite. Steroids in this family are neurosteroids: 3α-androstanediol, a closely related testosterone metabolite, is an established positive allosteric modulator of the GABA-A receptor with anxiolytic, rewarding and anticonvulsant effects (PMID 20551294). The "aura" framing is marketing; the measurable CNS action is GABAergic.

Progesterone is metabolised to allopregnanolone, one of the most potent endogenous positive allosteric modulators of GABA-A known. This is not theoretical in men — a controlled study administering 200 mg intramuscular progesterone found plasma progesterone and allopregnanolone rose reliably in both men and women, with mild sedative-like effects in both (Söderpalm et al., *Psychoneuroendocrinology*).

Selank is a synthetic heptapeptide with anxiolytic effects, developed in Russia as a tuftsin analogue. Its evidence base is modest and largely single-lineage, but anxiolysis is the effect it is taken for.

Pinealon is a Khavinson tripeptide with preclinical neuroprotection data and no completed human efficacy trials — none for cognition, and certainly none for "social fluidity." We covered its evidence base in our review of Pinealon and Epitalon.

So this is not a stack of four complementary tools. It is three anxiolytics with overlapping mechanisms, plus one compound with no relevant evidence.

Why is combining these with alcohol the real risk?

Evidence tier: 1 — established additive pharmacology.

Here is the part the post does not mention, and it is the part that matters.

Alcohol is also a positive allosteric modulator of GABA-A. The stated context is "going out tonight to an event." If drinking happens — which at most social events it does — the person has combined three GABA-A-modulating compounds with a fourth.

These effects are additive, not parallel. Layering multiple positive allosteric modulators at the same receptor complex is precisely the mechanism behind benzodiazepine-and-alcohol harm: sedation deeper than either produces alone, anterograde amnesia (blackouts) at doses that would not individually cause them, impaired coordination and judgment, and at the extreme, respiratory depression.

The practical failure mode is not dramatic collapse. It is a normal evening in which someone is far more impaired than they feel, drinks at their usual pace because the subjective cues are blunted, and loses the memory of part of the night. Blunted anxiety and blunted self-monitoring are the same pharmacological effect viewed from two sides.

There is a second-order problem too: tolerance to allopregnanolone at GABA-A develops with repeated exposure. Doing this regularly means the same stack does less, which invites escalation — of dose, or of what gets added to the stack.

Does the stack even do what it claims?

Evidence tier: 2 — endocrine pharmacology.

Partly not, and the internal contradiction is worth pointing out.

Progesterone has anti-androgenic activity. It competes at the androgen receptor and inhibits 5α-reductase, the enzyme that converts testosterone to DHT. Androsterone is in the stack specifically for its androgenic framing. Adding progesterone works against that.

So the two hormonal components pull in opposite directions: one taken for androgenic effect, the other blunting androgen signalling while producing sedation. Whatever the subjective experience of this combination is, it is not "maximum male aura" plus separately-deleted anxiety. It is mostly sedation with an androgen that is partly antagonised.

And Pinealon contributes nothing evidenced to an acute social situation. No human trial has tested it for cognition, alertness, or social function. Whatever "social fluidity" someone experiences on this stack is far more plausibly the three anxiolytics.

Is social anxiety the same as autism?

Evidence tier: 2 — clinical distinction.

No, and the distinction matters practically rather than as a point of etiquette.

Autism is a neurodevelopmental difference in how someone processes social information, sensory input and communication. Social anxiety is a fear response — anticipatory dread of judgment, and avoidance that reinforces the dread. They can co-occur, and they can look similar from outside, but they are different things with different responses to treatment.

You cannot pharmacologically remove a neurotype. What a GABAergic stack can do is temporarily blunt the anxiety response — which, if the underlying difficulty is social anxiety, will feel like it is working, and which addresses none of the underlying processing differences if it is autism.

The impulse behind this is sympathetic and worth taking seriously. Social situations genuinely are harder for some people, that is exhausting, and wanting help with it is reasonable. The problem is that this specific approach has a well-documented failure mode.

What's the dependence risk?

Evidence tier: 2 — established clinical pattern.

This is the strongest practical argument against the protocol, and it has nothing to do with any individual compound being dangerous.

Taking an anxiolytic before a feared social situation is the textbook route into psychological dependence. It is a large part of why benzodiazepines are not first-line for social anxiety disorder despite working acutely. The mechanism is behavioural, not chemical: getting through the evening medicated teaches you that you got through it because you were medicated. The belief that you cannot manage unmedicated grows every time it works.

That directly blocks what actually treats social anxiety. The evidence-based treatment is exposure-based cognitive behavioural therapy, which works through extinction learning — repeatedly experiencing the feared situation without the feared outcome, until the fear response attenuates. Anxiolytics taken during exposure are a recognised form of safety behaviour, and safety behaviours interfere with extinction. You get the evening; you do not get the learning.

So the honest framing is not "these compounds are dangerous, don't." It is that this protocol is optimised for one night at the cost of the thing that would make the next hundred nights easier. If social situations are hard enough that you are building a four-compound stack for them, that is worth raising with a clinician — social anxiety is one of the more treatable conditions in psychiatry, and the treatments have durable effects that a stack does not.

Limitations

This is educational content, not medical advice.

• Progesterone is a prescription hormone. Using it recreationally in men, unmonitored, has endocrine consequences beyond the acute sedation described here.
• Selank's evidence base is modest and concentrated in Russian-language literature with limited independent replication.
• Pinealon has no human efficacy data. Statements about what it does not do are as evidence-free as claims about what it does.
• The specific magnitude of additive GABA-A effects for this combination has not been studied. The additive risk is inferred from established receptor pharmacology, not from a trial of this stack.
• Androsterone supplement products vary enormously in content and purity, and the neurosteroid conversion depends on individual enzyme activity.
• Nothing here diagnoses anyone. The distinction between social anxiety and autism is a clinical one requiring assessment.
• Marko Maal, MSc Pharmacy reviewed this article. Reviewer attribution does not constitute a doctor-patient relationship.

The bottom line

Read pharmacologically rather than as a list of four tools, this stack is three overlapping GABA-A anxiolytics and one compound with no relevant human evidence. That is not obviously irrational — the person has correctly identified that they want their anxiety response blunted, and three of the four choices do that. The problem is that they have done it without apparently realising the mechanisms overlap, in a setting where alcohol is a likely fourth addition to the same receptor, and where the subjective signal that tells you to stop drinking is one of the things being suppressed.

The two hormonal components also work against each other, which makes the stated rationale incoherent even on its own terms.

And the deeper issue is what the protocol is for. Blunting anxiety to get through an evening works, right up until it becomes the only way you can get through an evening. If social situations are difficult enough to warrant this much effort, the treatments with real evidence behind them are durable in a way a stack is not — and they do not require you to be pharmacologically prepared to leave the house.

Related on this site

• Selank
• Pinealon and Epitalon for sleep: what Huberman actually said
• Are you supposed to feel Semax & Selank? What nootropic peptides feel like
• Nootropic peptide cycling: Semax, Selank and the tolerance question
• Why most longevity peptide stacks don't survive evidence scrutiny
• Our evidence-tier framework

References

• Reddy DS, Jian K. The testosterone-derived neurosteroid androstanediol is a positive allosteric modulator of GABA-A receptors. PMID 20551294 — androgen-metabolite GABA-A modulation.
• Söderpalm AHV, et al. Administration of progesterone produces mild sedative-like effects in men and women. Psychoneuroendocrinology. Article — 200 mg IM progesterone; allopregnanolone rises comparably in both sexes.
• Turkmen S, et al. Tolerance to allopregnanolone with focus on the GABA-A receptor. Br J Pharmacol 2011. Article — tolerance to neurosteroid GABA-A modulation.
• Neurosteroids and GABA-A receptor function. Front Endocrinol 2011. Article — review of neurosteroid positive allosteric modulation.