We read Plum's own product feed on August 2, 2026 - 340 in-stock listings, of which 60 are gift-with-purchase or merch slots that you cannot buy on their own, including six priced at Rs. 1 and reading as 100% off. That leaves 280 buyable listings, and across them the discount is close to a constant: 10% is the most common band, the median Plum-branded single is exactly 10% off, and 33 listings carry nothing at all. So we ignored the badge and sorted by the two numbers Plum actually prints on the bottle - the concentration of the active and the millilitres in the pack. Doing that surfaces the decisions worth making. The 5% niacinamide serum is Rs. 509 for 30 ml; the 10% in the same size is Rs. 560, fifty-one rupees more for double the active. The 2% salicylic serum costs Rs. 22.50 a millilitre in its small bottle and Rs. 16.97 in its large one. And the deepest discounts in the whole shop are not on skincare - they are on BodyLovin' perfume. Twenty-one picks, organised by strength.
