The gels
Two chemistries do almost all the work in this industry. Know which is which and why.
What you will learn
- Hydrogen peroxide against carbamide peroxide
- The 3 to 1 relationship and what it means in practice
- How to store gel so it still works when you need it
The two that matter
Hydrogen peroxide and carbamide peroxide are the common gels worldwide. Carbamide is made from hydrogen peroxide by adding a urea molecule to each one, which makes it far more stable.
That stability is why carbamide was invented for over the counter products. Hydrogen peroxide has a short life, especially at higher strengths.
The rest of this lesson
- Four gel chemistries compared on speed, results, comfort and shelf life
- The 3 to 1 rule, and the sum you do when a client quotes a number off a box
- How to store gel, and the storage mistake behind most weak results
Still free. We ask who you are once, and the whole course opens for you.