Is Red Light Therapy Safe?

The Truth about Red Light Therapy Side Effects

Meital James
3 min readOct 22, 2013


Deep penetrating red light therapy is actually a non invasive, cost-effective, alternative treatment to all sorts of skin problems, skin appearance and is very effective as a natural pain reliever.


Is red light therapy safe and what are the side effects?

Red light easily penetrates the skin, boosts circulation and bringing more blood and nutrients to the area.

It also stimulates vital collagen and elastin production. Collagen helps plump the skin, while elastin firms the skin.

The red light is energizing and repairing damaged cells, stimulating collagen and elastin and giving the skin back its youthful look.

What is Red Light Therapy and How Does it Work?

Developed by NASA to heal wounds, red light therapy was found to promote and speed up skin regeneration.

This is what makes red light therapy so effective in removing scars and general skin rejuvenating.

(Read: 4 Astonishing Skin Benefits of Red Light Therapy)

Red light is able to penetrate the skin to a depth of 8 — 10mm encouraging the cells to naturally stimulate the production of collagen and elastin.

The anti-aging effect is produced by increased collagen adding volume to the skin and extra elastin firming and toning the skin.

Red light penetrates to the bottom of the dermis down to the fatty layer; which also makes it beneficial as a natural anti-inflammatory.

Is Red Light Therapy Safe?

Laboratory studies have shown that skin cells grow 150 — 200 percent faster when exposed to certain light wavelengths, and research studies have shown red light penetrates the epidermal layer of the skin and begins to heat the dermis.

With the rise in temperature, new collagen and elastin is naturally produced by our body, delivers powerful therapeutic benefits to living tissue.

The result?

Increasing your own production of collagen which in turn smooths and reduces wrinkles and creates more youthful looking skin.

(Read: The 9 Best Red Light Therapy Home Devices in 2018)

Is Red Light Therapy Safe for The Eyes?

According to the FDA, red light at 633nm has a “non-significant risk” status and is completely safe for the eyes.

Can Red Light Therapy Damage Your Skin?

Too much sunlight can affect the skin due to the emission of broad spectrum ultraviolet energy through the atmosphere.

Red Light treatment bed lamps utilize the visible spectra of light at 633nm (red), but contain no UVA or UVB rays.

What’s the Difference Between Red Light Therapy and Laser Treatments?

Red light therapy does not cut, burn or break the skin as with laser treatments. It produces no vaporization or burning of the tissue, and therefore no inflammation or erythema.

Does Red Light Therapy Work for ALL Skin Types?

The Collagen Red Light Therapy is safe and effective for all skin types and colors. The main prerequisite is that skin be clean for effective light transmission.

Are There Any Short Term Side Effects?

There are some testimonials of skin redness after treatments. This side effect is usually caused by improper use of red light therapy, especially over-use.

Any side effect can be avoided by following the manufacturer’s instructions and not being tempted to speed up results by over-use.

How to Choose a Red Light Therapy Home Device

There are many red light therapy home devices, and it can be quite over whelming to choose the right device for you.

You should know that some red light therapy devices are FDA approved, yet some are not.

This is a simple (but complete) guide to choosing a led light therapy home device.

It will help you find out the best type of device for you, based on your specific needs, and will give you examples of FDA-approved red light therapy devices.

Find out everything you need to know about red & infrared light therapy at



Meital James

Founder and CEO of 4 healthy living blogs, has a background in Naturopathic medicine, research, journalism, and nutrition.