To what color does Tri-Luma cream change after it expires?

triluma cream is crap, and bad for your skin long term because of the steroid in it. I suggest you use cosmlean 2 cream in its place and do at home enlighten or aerify peels (see link to emeragecosmetics.com where we do free skincare cosnults daily). other products like is clinical pro heal, phyto plus, and vivatia foam help and are antiaging!
Hyperpigmentation from any type needs a combination approach of peels like cosmelan,  lasers like clear and brilliant and aerolase or laser genesis, radiofrequency like venus viva, and constant skin care and sun protection.  Bimontly facials with silk peel dermalinfusion is essential to hydrate, exfoliate and infuse vitamins and antioxidants into the skin.  If you have acne you can do additional treatments and peels to get more improvement.  I suggest a formal consultation with an expert in lasers and peels. Best, Dr. Emer.

Thanks for your question. If you have taken good care of the product, it is probably just a little weaker rather than harmful after its expiration date. You could try a small amount in a discrete area and see if it still seems to work, before proceeding to treating the whole face. Another option is to check with a pharmacist who might know better if it is still effective. Best of luck.