Hi Arja!
This doesn’t sound like you necessarily did anything wrong. 🤍 The color of the Cocoa Self-Tanning Mousse 1 Hour Express product continues to develop for several hours after rinsing, so the final result isn’t always visible immediately. Five pumps for one arm sounds like a reasonable amount if the product was applied evenly to the skin.
When you try the product again, you can let it work for 2–3 hours before rinsing off. If the effect is still missing and you suspect there might be something wrong with the product, I recommend making a complaint so we can help you further. 💌
All the best!