Skin & Nail ServicesQuestion 394 of 484
Which color of LED light therapy is most commonly associated with stimulating collagen and addressing fine lines on aging skin?
a.Yellow light only
b.Red light
c.Blue light
d.Green light
Explanation
Red LED light is most commonly associated with stimulating fibroblasts and collagen production, supporting anti-aging treatments. Blue LED targets P. acnes bacteria for acne, and green LED is often promoted for pigmentation and redness.
Practice all 484 questions free — no signup required.
Related questions on this topic
- Which of the following is within a California esthetician's scope but NOT within a manicurist's scope?
- During the desincrustation phase of a galvanic facial, which pole and which product type are used to soften and emulsify sebum in the pores?
- What is the main difference between direct and indirect application of high-frequency current during a facial?
- Before performing eyebrow tinting with a semi-permanent dye, the esthetician should:
- What is the key chemistry-and-application difference between traditional acrylic and dip-powder nail enhancements?
- Compared with traditional UV gel polish, modern LED gel polish typically:
Last reviewed: · editorial process
Sen Lin, PrepPass Founder · Verified against California Board of Barbering & Cosmetology Exam · How we review