Our testing notes.
The Fragrance Free Concentrate For Men is the most DIY-friendly product PheroStrong makes: an unscented pheromone concentrate you blend into your own perfume or wear alone.
The scent-free base is genuinely useful for layering, but as everywhere in the brand, no specific compounds are disclosed, so you're adding an unspecified concentrate rather than a known stack. For flexibility, it works. If you want to know exactly what you're layering, a disclosed brand's unscented additive is the better choice.
"PheroStrong Fragrance Free Concentrate for Men: a well-constructed pheromone fragrance with a distinctive pheromone-enhanced fragrance."
Dipropylene glycol, Parfum, Benzyl benzoate, Citronellol, Eugenol, Gernaiol, Hydroxycitronellal, Limonene, Linalool, Methyl ionones