
1550 nm or 1927 nm: How to Read the Two Numbers Behind Non-Ablative Fractional Resurfacing
Beverly Hills consult rooms quote both wavelengths for the same face, often in the same sentence. Here is what each one actually does to skin, why depth and water absorption decide the answer, and which concerns favor which number.
July 15, 2026 / By Leticia Arrington / 5 min read







