What is the best before and aftercare for PicoSure focus lens array ?

Hi, the main ingredient you need to avoid is any vitamin A derivative in your skincare products... such as renova, retin-a, tretinoin, retinaldehyde...  for one week before Picosure, and one week AFTER picosure.  No facials, microneedling, microdermabrasion during your treatment sessions with PicoSure.Immediate aftercare includes trying to keep your face cool in the first 24 hours... so no exercises that'll make you hot & sweaty.  Avoid steam rooms and sauna.  Of course avoid the sun for the first 24 hours.  After that, you can go about your daily activity but be sure to use sunscreen.  No pool, beach activity for about a week.  I give my patients cicalfate post procedure emulsion from Avene to keep skin protected and moisturized during the healing process.As always, sunscreen, sunscreen, sunscreen.  I'd recommend one that is at least SPF of 30 and is mineral based.  

Pre-procedure instructions include: discontinuing any photosensitizing skincare products 1-2 weeks prior to treatment (ie retin-A, AHA etc), avoid treating if taking photosensitizing antibiotics, do not have a tan (natural or spray tan)
Post-procedure: avoid the sun, wear hats, wear SPF, be very gentle with your skin, have a good skin care routine. Alastin tri-hex technology products are helpful to clear the debris of old collagen and elastin and make way for new stimulation and production of collagen/elastin.

Dear Edmonton,AB
Thank you for the question. To get the best from PicoSure laser skin rejuvenation treatment, do the following:
1. It's recommanded to stop all the skin care products with vitamin A derivatives such as retinol, tretinoin..for one week before and after the treatment. 
2. No other facial treatment while on picosure sessions such as micro-needling, facials....
3. Avoid exercise and sauna or steam room to keep your face cool for 1 day.
4. Avoid direct sun exposure for couple weeks before and after treatment. Use physical sunblock with >30SPF 

LOVA - Lake Oswego Vein and Aesthetic