GlycoLemon - Supports GLP-1 production and your metabolic health
The answer is often yes if they have a documented weight-related medical condition

Water, Niacinamide, Helianthus Annuus (Sunflower) Seed Oil, Glutathione, Mentha Piperita (Peppermint) Leaf Extract, Primula Veris Extract, Achillea Millefolium Extract, Malva Sylvestris (Mallow) Extract, Melissa Officinalis Leaf Extract, Veronica Officinalis Extract, Trichosanthes kirilowii root Extract, Phyllanthus emblica Fruit Extract, Morus Alba Bark Extract, Hamamelis Virginiana (Witch Hazel) Leaf Extract, Sodium Hyaluronate, Glyceryl Arachidonate, Glyceryl Linolenate, Panthenol, Tocopheryl Acetate, Sodium Ascorbyl Phosphate, Pyridoxine, Folic Acid, Thiamine HCL, Cyanocobalamin, Biotin, Retinyl Palmitate, Acetyl Hexapeptide-8, Copper Tripeptide-1, Oligopeptide-29, Oligopeptide-32, Palmitoyl Pentapeptide-4, Cetearyl Olivate, Polyacrylamide, Sorbitan Olivate, 1,2-Hexanediol, Pulsatilla Koreana Extract, Zanthoxylum Piperitum Fruit Extract, Usnea Barbata (Lichen) Extract, C13-14 Isoparaffin, Fragrance, Carbomer, Triethanolamine, Glycerin, Laureth-7, Butylene Glycol, Ethylhexylglycerin, Hydrogenated Lecithin, Polyglyceryl-10 stearate Note that the ingredient list may differ from batch to batch

Its not going to be sufficient on its own, and you need to really take sun protection seriously when you use Vitamin C, especially as sun exposure will darken melasma