Hey Heta!
Thanks for your questions 🩷 The product can basically be used with every wash according to the instructions. However, it is a more effective treatment than regular conditioner for providing shine and smoothness, so for many, it is sufficient to use it for example every other wash depending on hair type and washing frequency 🫧🧴
Excessive use generally does not cause actual hair damage when the product is used according to the instructions (about 5 minutes of exposure time and thorough rinsing). It is advisable to reduce usage if the hair starts to feel heavy or drier 🩷
The product is not really designed to replace regular conditioner, but to work alongside it or as an intensive treatment. It particularly provides shine and smoothness, but does not necessarily moisturize in the same way as traditional conditioner. You will get the best results by first using shampoo, then conditioner, and then the Glycolic Gloss treatment ✨