Can I use your bars but a different cream and serum?Updated 10 months ago

Yes, that's fine. However, it's important to make sure that you don't combine fruit acid with fruit acid. (Nopal Negro Bar has FA) You also shouldn't use an exfoliant after using Tepezcohuite or Nopal Negro. An example of an exfoliant is serums or creams with BHA/salicylic acid.