LED Mask: Before or After Skincare? (The Definitive Guide)

You invested £300 in a mask and £50 in a serum. Don't waste them by layering them wrong. The question of "before or after" is debated, but the physics of light transmission gives us a clear answer.

The Rule: Clean, Dry Skin is Best

For maximum light penetration, there should be nothing between the LED and your skin.

• Sunscreens: Designed to block light. If you have SPF on, the mask is useless.
• Makeup: Pigments absorb light energy.
• Oils/Moisturisers: Can reflect light or create a barrier.

Our Recommendation: Cleanse, Dry, Mask, Then Skincare.

The Exception: "LED-Boosting" Ingredients

Some water-based serums can actually enhance the treatment.

• Green Tea Extract: Studies show it can accelerate the results of red light therapy.
• Hydrating Toners: A light layer of water or transparent glycerine is generally fine and prevents dryness.

The "Do Not" List (Before Mask)

Never apply these before your session:

1. Retinol/Tretinoin: Can cause photosensitivity. Apply after.
2. Vitamin C (L-Ascorbic Acid): Can degrade in light and might cause irritation. Apply after (or in the morning).
3. Face Oils: Reflect the photons.

Ideal Routine: PM Protocol

1. Cleanse: Double cleanse to remove SPF/Makeup.
2. Mask: 10 Minutes Red/NIR.
3. Treatment: Apply Retinol or Peptide Serum.
4. Moisturise: Lock it all in.

FAQ

Q: My face feels dry waiting 10 minutes. A: Spritz some thermal water or a plain Hyaluronic Acid toner before the mask. Just avoid anything thick or white.

Q: Can I put a sheet mask under the LED? A: Only if it is transparent (hydrogel). Paper or cotton sheet masks will physically block the light rays.