Tested on animals:Yes
The premise behind this serum is that it's an alternative to anti-aging products with retinol. Not everyone's skin can tolerate regular use of retinol, and some people cannot use it at all due to side effects, such as redness, flaking, or other signs of irritation. Is this serum the answer if your skin doesn't like retinol? Maybe, but this isn't the equivalent of retinol, so it shouldn't be construed as something that's just as good.
This serum contains what the company refers to as "Retinopeptide 189," said to support natural cell turnover; however, an online search for that term found only a few results, all having to do with this Roth product. We suspect that Retinopeptide 189 is one of the ingredients listed for this serum—myristoyl nonapeptide-3—but there's no research supporting this connection or showing that this peptide has any anti-aging benefit for skin, let alone the same prowess as retinol.
Although this isn't an apples to apples alternative to a serum with retinol, it's still a good serum for normal to dry skin. The fragrance-free formula contains some good moisturizing agents (texture-wise, this is closer to a fluid moisturizer than a serum), soothing agents, and a tiny amount of antioxidants. For what this costs, it should be better, but if you're hooked on Peter Thomas Roth and find the brand's retinol serums too much for your skin, this may be worth a look.
Note that this serum contains only one ingredient (bakuchiol) that can potentially improve hyperpigmentation (dark spots), and there is only one promising study showing it has this benefit on skin (Source: Bioscience, Biotechnology, and Biochemistry, July 2010 ePublication).
- Contains some good moisturizing ingredients.
- Nice mix of anti-irritants that can help reduce redness.
- Fragrance-free formula is suitable for sensitive skin.
- Not an apples-to-apples alternative to products with retinol.
- Doesn't contain much to improve hyperpigmentation.
- The "Retinopeptide 189" is seemingly a mystery, with no research explaining what it is or what it can do—you just have to take Roth's word for it.
- Expensive given that its benefits don't seem to be as good as those from a product with retinol.