Frequently asked questions

Everything about using your device, placing an order and getting help. If your question is not here, send us a message and we will answer by email.

Using your device

What is red light therapy?

Red light therapy, also called photobiomodulation, uses red and near-infrared light at low intensity. The light is absorbed by your cells, where it is thought to support energy production and the skin’s own repair processes. It does not heat or damage the skin, and there is no downtime.

Is it safe to use at home?

Our devices are non-invasive and designed for home use, and published reviews of LED light therapy report a good safety record with mild, temporary redness as the most common effect. Always use the eye protection supplied with your device, never look directly into the LEDs, and follow the session time in the manual. Speak to a doctor first if you are pregnant, take medication that causes light sensitivity such as isotretinoin or certain antibiotics, or are being treated for a skin or eye condition.

How often should I use my device?

Follow the manual that comes with your product, since session length and frequency differ by device. A common pattern is three to five sessions a week. Longer sessions are not better: light therapy works best at low doses, and going past the recommended time reduces the benefit rather than increasing it.

How long before I see a difference?

Results vary from person to person and by product, so we do not promise a timeline. Studies on skin generally measure change over four to twelve weeks of regular use, and hair studies usually run longer. Take a before photo in consistent lighting and compare monthly rather than judging day to day.

Is red light therapy suitable for all skin types?

Red light therapy is generally considered suitable for all skin types and tones, because it does not rely on heat or pigment targeting the way some other treatments do. If you have a skin condition under treatment, check with your dermatologist before adding it to your routine.

Should I use serums before or after a session?

Use your device on clean, dry, bare skin so nothing sits between the light and your skin, then apply serums and moisturiser afterwards. Avoid applying strong actives such as retinoids right before a session, especially if your skin is already irritated. Our daily essentials range is chosen to pair with a light therapy routine.

How do I clean and store my device?

Wipe the surface with a soft, slightly damp cloth or an alcohol wipe after each use, and let it dry fully before storing. Never submerge a device in water, and keep it in its case or box away from direct sunlight. Check your manual, as cleaning instructions differ between masks, caps and mats.

Which device should I start with?

For facial skin, most people begin with an LED mask. For thinning hair, look at the hair growth caps. For larger areas or recovery, a mat or panel makes more sense. See the full red light therapy range, or email us and we will help you choose.

Orders, shipping and returns

Do you ship across the USA?

Yes, we ship across the United States with tracking available on every order.

How long does delivery take?

Delivery usually takes [X to X business days] depending on the product and your location. You will receive a tracking link by email as soon as your order ships.

How do I track my order?

A tracking number is emailed to you once your order leaves the warehouse. If it has not arrived, check your spam folder first, then email info@ohmistry.com with your order number and we will look it up.

What is your returns policy?

If you are not happy with your order, contact us within [X] days of delivery and we will guide you through the return. Items should be in their original condition and packaging. Email info@ohmistry.com to start a return.

My item arrived damaged or incorrect. What now?

Email info@ohmistry.com with your order number and a photo of the item and packaging. We will arrange a replacement or refund.

Is it safe to pay on your site?

Yes. Payments are processed by Stripe, one of the largest payment providers in the world. Your card details go straight to Stripe and are never stored on our website.

Can I change or cancel my order?

Email us as soon as possible with your order number. If the order has not yet been dispatched we can usually change or cancel it, but once it ships it will need to be handled as a return.

About Ohmistry

Are your products FDA approved?

Our products are consumer wellness devices, not medical devices, and we do not market them as FDA approved. Some light therapy devices on the market hold FDA clearance, which is a different process that shows a device is substantially equivalent to an existing one and meets safety standards. We describe what our products do without making medical claims.

Why choose Ohmistry?

We focus on devices that are genuinely easy to keep using: clear instructions, sensible session times and honest product descriptions. We would rather explain what a device realistically does than promise results we cannot back up. Read more about us.

How do I contact you?

Email info@ohmistry.com or use our contact form. We are based at 2719 Hollywood Blvd, L-171, Hollywood, FL 33020, United States.

Still have a question?

Email us at info@ohmistry.com and a real person will reply. We are happy to help you pick the right device before you buy.