Hello Colly,
Welcome to the forum. The two products you mention are very similar pheromone-wise. The difference is mainly that one is an oil base and the other is an alcohol spray. If you take out your calculator you will see that Andro with its 4.2 mg of androstenone has a little more bang for the buck at $44.95 than Primal with its 5 mg at $69.95, but a bottle of Primal is very handy to carry in your pocket or bag, and won\'t leak on you. Both products are good and very popular. It\'s a matter of taste for the most part.
Cheers,
Bruce
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