Paula’s Choice 1% Retinol Booster vs Cos De BAHA S4 Salicylic Acid BHA 4% Serum

The Paula’s Choice 1% Retinol Booster and Cos De BAHA S4 Salicylic Acid BHA 4% Serum make for good, if unremarkable, Facial Serums at their respective budgets.

With that said, while they both should serve reasonably well, you might want to look into other options at the $45 and $15 price points - it's likely that there are some better alternatives available.

If you want to learn more about the Paula’s Choice 1% Retinol Booster and the Cos De BAHA S4 Salicylic Acid BHA 4% Serum, however, we prepared a summary of the information that we have:

The Paula’s Choice 1% Retinol Booster hasn't managed to get enough recognition from sources that do high-quality hands-on testing and therefore didn't make it into any relevant roundups. That, by itself, makes it difficult to recommend.

Taking a look at the Cos De BAHA S4 Salicylic Acid BHA 4% Serum, we found that it hasn't managed to perform well enough to earn a spot in any Facial Serum roundups done by sources that conduct their own, high-quality, hands-on testing. That alone makes it difficult to recommend.

As a last step, we wanted to do a head-to-head Paula’s Choice 1% Retinol Booster vs. Cos De BAHA S4 Salicylic Acid BHA 4% Serum comparison of their review performance but, unfortunately, weren't able to find any review ratings on either product.