How often and long do you have to use it for it to see results

What percentage are you planning to use?

According to my research, 4% should be used twice a day, morning and night. During the day, wear it with sunblock over it. Mix it with retin a to get better absorption into your skin.

I am about to start using it, this is how I will use it:

Night:

· Cleanse,
· wash,
· wait 20 minutes
· apply retin a
· wait 5 minutes
· apply HQ


Morning:

· wash,
· wait 5 minute
· Apply HQ
· Wait 5 minutes
· Apply sunbloock

It will take about 2 weeks using 4% to see results.