It will take some time for your skin to tighten up, as it is depends on genetics, your age, and how much weight you have lost.
It is commonly recommended to drink lots of water, and to apply something like cocoa butter or coconut oil onto the loose skin. DMAE has been found to help tighten up skin[1][2][3] and could also be useful.
References
- ^Grossman RThe role of dimethylaminoethanol in cosmetic dermatologyAm J Clin Dermatol.(2005)
- ^Uhoda I, Faska N, Robert C, Cauwenbergh G, Piérard GESplit face study on the cutaneous tensile effect of 2-dimethylaminoethanol (deanol) gelSkin Res Technol.(2002 Aug)
- ^Tadini KA, Campos PMIn vivo skin effects of a dimethylaminoethanol (DMAE) based formulationPharmazie.(2009 Dec)