TL;DR
At-home LED masks use the same wavelengths as pro devices at lower power but more frequency. Over 1 year: pro treatments cost $2,400-6,000 vs at-home $199-435 one-time. Most dermatologists recommend combining both.
Professional LED facials cost $150-500 per session. At-home masks cost $199-435 once. The technology is identical — the difference is power output and treatment time. Here is the real comparison.
Power vs Frequency
Pro devices deliver 100-200 mW/cm2. At-home masks deliver 20-55 mW/cm2. Higher power means shorter sessions. However, research shows lower power with more frequent use achieves comparable cumulative results. At-home masks used 3-5x/week actually deliver more total light energy per month than monthly pro sessions.
The Real Cost Comparison
Monthly pro LED: $2,400-6,000/year for 12 sessions. At-home premium mask (Dr. Dennis Gross): $435 for 150-250+ sessions/year. At-home budget mask: $199 for the same frequency. The math overwhelmingly favors at-home devices.
Disclosure: Crelooking earns from qualifying purchases at no extra cost to you.