How long do anesthetic takes to make effect?
Primary numbness takes a relatively long time, between 25 to 30 minutes, while secondary numbness works very quickly; 1 minute. Be aware of the time it takes for primary numbness to kick in before scheduling an appointment with a client.
Leave some extra time, because some customers take longer to respond to numbness and may need a few extra minutes.
Note that you can only leave the primary numbness on for a little longer, not the secondary numbness. The skin will become extremely hard and difficult to work with if you leave the secondary anesthetic on for more than one to two minutes.
What should I look for in a topical anesthetic?
Both types of permanent makeup numbness contain lidocaine, and this is the basic ingredient. It is a powerful anesthetic, and cosmetic anesthetic creams contain up to 5% lidocaine. Microblading artists are not doctors and are not allowed to use stronger anesthetics than this.
The stronger the effects are, the more lidocaine is in the formula.
In addition to lidocaine, many formulas also contain tetracaine and benzocaine. Different customers respond differently to these ingredients, so if you want to make sure your customer falls asleep, look for a formula that contains all 3.
Secondary anesthetic formulas contain vasoconstrictors, usually epinephrine, which shrink the skin’s blood vessels and contracts blood flow, which means less bleeding during treatment and less redness and swelling.
The consistency of numbness is another factor to consider. In terms of consistency, some formulas are thick and oily, while others are more gel-like or watery. The formula you choose depends on your preference, but also on the treatment you are performing.