Psoralea Corylifolia (Bakuchi) Oil is the most significant safety concern in this product. The whole seed oil contains psoralens, isopsoralen, and bergapten - phototoxic furanocoumarins that can cause severe phototoxic contact dermatitis when skin is subsequently exposed to UV light. This reaction can produce burns, blistering, and lasting hyperpigmentation. The SCCS Opinion SCCS/1529/14 raised specific concern about furocoumarin content in Psoralea corylifolia-derived cosmetic ingredients in leave-on products. Bakuchi Oil should not be applied to skin before sun exposure. This is not the same ingredient as isolated Bakuchiol (the retinol-alternative compound extracted from the plant), which is safe; the whole Bakuchi Oil carries a phototoxic risk that isolated Bakuchiol does not. Benzyl Alcohol serves as both a preservative and an EU-listed fragrance allergen in this leave-on treatment - its dual role is not communicated on the product page. Retinyl Palmitate has a documented concern about generating reactive oxygen species under UV exposure, noted in the 2012 FDA/NTP study; subsequent analysis suggests the risk at cosmetic concentrations is low, but it adds to the case for strictly evening use.

The INCI list for this product shows Retinyl Palmitate, not Retinol. These are different ingredients with meaningfully different potency. Retinyl Palmitate is the most indirect form of vitamin A - it must undergo three enzymatic conversion steps in the skin before reaching retinoic acid (the biologically active form), whereas Retinol requires only two. Each step is limited by enzyme availability, so a stated percentage of Retinyl Palmitate delivers substantially less retinoid activity than the same stated percentage of Retinol. Consumers reading '1% Retinol' in the product name would reasonably expect pure Retinol. There is no Niacinamide present to help buffer the irritation that retinoid activity can cause - common in well-designed retinoid serums. Apple stem cell extract (Malus Domestica Fruit Cell Culture Extract) is present but has limited clinical evidence for topical efficacy. Squalane and Isodecyl Neopentanoate provide a good emollient base. Hydrolyzed Rice and Pea Proteins and the free amino acids Glycine and Proline are sound barrier repair and conditioning choices. Hydrolyzed Sodium Hyaluronate is a low-molecular-weight HA that can reach deeper into the epidermis for hydration. Aloe Barbadensis Leaf Juice provides a soothing base.

The product is named '1% Retinol' but the INCI list shows Retinyl Palmitate. These are not the same ingredient. Retinyl Palmitate is a significantly weaker form of vitamin A than Retinol, and most consumers reading the product name would reasonably expect pure Retinol (retinol USP). Under EU claims Regulation EC 655/2013, product claims must not mislead consumers about the nature or content of the active - this naming raises that concern. The phototoxic risk from Bakuchi Oil (Psoralea Corylifolia, containing psoralens) is not communicated to consumers anywhere on the product page. Night-only use guidance is not prominently displayed despite the presence of a phototoxic ingredient. No clinical study data has been published for this formula. The INCI list is available on the product page.

Plum is certified 100% vegan and PETA cruelty-free. The brand does not sell into markets requiring mandatory animal testing. Bakuchi (Psoralea corylifolia) has a long history of use in Ayurvedic medicine; sustainable sourcing practices are not confirmed. Squalane is plant-derived per Plum's vegan certification. There are no parabens and no synthetic fragrance added. The only notable petrochemical-derived emollient is Isohexadecane.