Microblading aftercare is the most important part of the process. Your new eyebrows will look stunning after your initial procedure, but if you don't look after them properly you have a higher chance of losing more pigment and shape. Your new brows will be around 40-50% darker than normal for at least 2 weeks and this is completely normal. You might need to use a healing cream over the course of a week and I recommend Hustle Butter. It is 100% vegan, does not contain petroleum, preserves the pigment, and helps you heal. It also smells amazing. Do not put any makeup in your brows for at least 10 days while they're healing. After your brows have healed, you will need to wear SPF protection in your brows so the pigment does not fade.
I cannot stress enough how important it is that you don't sweat, whether that is working out or being in a hot/steam room within the first 10 days! This also includes taking a shower in a non-ventilated bathroom. Your new brows will be in the healing process and need to be kept dry and free of infection so try not to touch them either. The longer you can keep your brows dry while they are healing, the longer your pigment and shape will last.