I saw a good review of this recently but it's not something I've tried as I don't really get pigmentation.
https://skinrocks.com/products/the-hyperpigmentation-serum
These are the ingredients if you wanted to look for something similar and/or cheaper.
Aqua (Water/Eau), Niacinamide, Caprylic/Capric Triglyceride, Propanediol, Dimethicone, Glycerin, Acetyl Glycyl Beta-Alanine, Potassium Cetyl Phosphate, Helianthus Annuus (Sunflower) Seed Oil, 3-O-Ethyl Ascorbic Acid, Ethyl Linoleate, Hexylresorcinol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Polysilicone-11, Cetyl Alcohol, Benzyl Alcohol, Carthamus Tinctorius (Safflower) Seed Oil, Morus Alba Leaf Extract, Butyrospermum Parkii (Shea) Butter, Polyisobutene, Squalane, Tocopheryl Acetate, Tetrahydrodiferuloylmethane, Evodia Rutaecarpa Fruit Extract, Betula Alba Bark Extract, Boswellia Serrata Extract, Centella Asiatica Extract, Polygonum Cuspidatum Root Extract, Tetrapeptide-30, Glyceryl Stearate, Coco-Glucoside, Sodium Hydroxide, Trisodium Ethylenediamine Disuccinate, Caprylhydroxamic Acid, Xanthan Gum, PEG-7 Trimethylolpropane Coconut Ether, Sorbitan Isostearate, Phenoxyethanol, Sodium Benzoate.