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✦ Tested review · No. 60 · Pheromone Reviews

A1 Single Molecule Pure Pheromone.

A single-molecule dose of androstadienone, the comfort-and-bonding compound people layer in to warm up a harsher blend.

7.5 /10
Scout score
Tested by
Marcus
Format
Dropper
Availability
In Stock
Buyer rating
4.7/5 (3 reviews)
Formulation 8.5
Brand 9.5
Transparency 7.5
Quality tier 4.7
Reception 7.0
A1 Single Molecule Pure Pheromone
+ The case for
  • + One clearly named compound, androstadienone, for precise layering
  • + One of the most-discussed human pheromone putatives, tied to comfort and bonding
  • + Cheap way to experiment with A1 in your own mixes
– Where it falls short
  • Not a finished product, so it needs other blends to do much
  • Effects are subtle and emotional rather than dramatic, and they vary by person
The full review

Our testing notes.

A1 is less a cologne than a raw ingredient. LAL sells it as a dropper of one molecule, androstadienone, the putative pheromone the community most often links to emotional warmth rather than sexual pull. The brand is among the names r/pheromones and Pherotruth trust most, which is part of why its single-molecule bottles get used as reference points.

Its calling card in community reports is what people call 'fallout': a lingering sense of comfort and attachment that builds over repeated wear instead of hitting all at once. Most users add a drop or two to round off a harsher, androstenone-forward blend. These are subjective reports, context-dependent, not guarantees.

I find our bond to be closer, her and I are definitely stronger friends than we were. It wasn't overnight that this happened; it took at least a week or so of me seeing her a few times a week with this on till I started noticing the change.
- A.B.

Because it's unscented and single-molecule, A1 only makes sense if you already mix your own. A beginner is better off with a finished LAL cologne like Wolf. This is a tool for someone who already knows what they're tweaking, and at $32.75, a cheap way to start.

Formula & ingredients

DPG (Dipropylene Glycol), Water, SD Alcohol 40-B, Essential Oils, Polysorbate 20, Fragrance (proprietary pheromone blend)

Who it's for
  1. 01 Experienced users who want to add warmth to a blend they already wear
  2. 02 Anyone curious what androstadienone's bonding reputation actually feels like
  3. 03 Unisex layering, not a solo scent
How to use it
  1. 01 1-2 drops to pulse points.
  2. 02 Layer with other pheromone colognes to add relationship depth.
Where to buy

Three places we'd actually click "buy".

Prices verified within the last 24 hours · we earn a commission on these links.

BEST PRICE
Liquid Alchemy Labs
32.75 USD
The fine print

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Editorial standards

Every product on Pheromone Scout is scored by the same documented method, the same way for every brand. We disclose every affiliate relationship before we publish. The score is recomputed when the underlying data changes.

A1 Single Molecule Pure Pheromone
32.75 USD · Liquid Alchemy Labs
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