예, you can safely use red light therapy (RLT) immediately after blue light therapy, and it is actually recommended for certain skin concerns (like acne or healing after treatment). Here’s why and how to do it properly:
Why should you combine them?
Blue Light First:
It kills acne bacteria (P. acnes) and reduces oil.
It works on the surface of the skin (1–2 mm deep).
Then, use red light after.
It reduces inflammation, redness, and scarring left behind after acne.
It goes deeper into the skin (5–10 mm) to help heal and repair collagen.
This sequence is commonly used in dermatology clinics and at-home devices (e.g., Omnilux Clear, CurrentBody masks).
How to Use Them TogetherOption 1: Same Session (Best for Acne/Aging)Blue Light (5–10 min): This targets bacteria and oil.
Then, immediately follow with red light (10–20 분): This soothes and repairs the skin.
Option 2: Alternate Days
Blue Light on Monday, Wednesday and Friday for active breakouts.
Red Light on Thursdays, Saturdays and Sundays is good for healing and anti-ageing.
The benefits of this order are:
✔ It minimises irritation (blue light can be drying; red light calms skin).
✔ Best results for people with acne-prone or sensitive skin.
The FDA has approved this sequence for use in treating acne.
Safety tips
Wait 1-2 minutes between blue and red light (no need to wash your face).
Moisturise after (RLT boosts product absorption—try hyaluronic acid or aloe vera).
Avoid if:
You are taking photosensitising medication (예를 들어. doxycycline, Accutane).
You have rosacea (blue light may trigger flares; test patch first).
Who should do this?
People with acne (it reduces spots and redness).
It can also help with the recovery process after a facial or peel (blue prevents infection, red speeds up healing).
If you are getting older and your skin is prone to breakouts, blue light can prevent clogged pores and red light can smooth wrinkles.
For best results, use 3–5 times a week for 4 weeks or more. Use it with other skincare products that don’t block your pores, such as niacinamide or vitamin C.
