Hi again! 👋🥰
Yes, the retinol serum may help to gradually improve the appearance of dark knees by promoting skin renewal, but it’s not specifically a pigmentation treatment, so results can vary. For the knees and especially the armpits, I would actually recommend starting with the Retinol Shot Serum rather than the Retinal Shot Booster, as retinal is stronger and may be more irritating 🩷
If your main goal is specifically to lighten pigmentation, an ingredient such as azelaic acid or a gentle AHA may be a better choice. I’d still recommend starting slowly and avoiding use directly after shaving or on irritated skin ✨