
Mask Defog
Clear Vision Underwater


Reef Friendly Mask Defog
Reef Friendly Mask Defog
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Product Description
Product Description
Our Eco-conscious Mask & Goggle Defog, made with only the safest ingredients for you and our planet.
Reef-friendly, Non-toxic Professional Strength Biodegradable formula.
Our Mask Defog is based on the ingredients of our shampoo, which has been tested to be biodegradable and reef and fish-friendly - PLUS it works brilliantly!
Testimonials have been rolling in that it holds up to multiple dives, and our bottles are sustainably made from sugarcane resins and recycled plastics. Our mask defog is just another way to protect what we love and see clearly while doing so!
Product Story
Product Story
Confession: My spit is defective. It doesn’t matter how much I prepare my mask, either. I have scrubbed and scrubbed, “toothpasted”, flamed, and scrubbed some more. I always fog.
So, I jumped into the lab and whipped up a batch using our tested and proven eco-safe ingredients. I like my defog a little more thick and believe the guar gum can also leave a slight film on the lens to help reduce fogging. It worked great for me, so I started giving out samples to friends and Divemasters – they all loved it!
– Autumn Blum, Founder and CEO, Stream2Sea
Usage
Usage
Directions for Dive Mask & Goggles: Apply a small amount on the inside of the lenses. Use your finger to rub completely over the lens. Add a small amount of water, and rub the defog to remove any streaks. Pour the liquid out when ready to dive. Some bubbles remaining are good.
For glasses, safety goggles, ski goggles, sports masks and more: Apply a small amount on the inside of the lenses and lightly rinse or gently buff with soft lens cloth. Our eco-friendly mask defog is made with only the safest ingredients, including Deionized Water, Aloe Barbadensis (Aloe Vera) Leaf Extract and Sodium Lauroyl Methyl Isethionate. Caution: Although this product is formulated with safe and gentle ingredients, avoid direct contact with eyes. If irritation occurs, rinse eyes thoroughly with water. Consult a physician if irritation persists.
Ingredients
Ingredients
Our eco-friendly mask defog is made with only the safest ingredients, including Deionized Water, Aloe Barbadensis (Aloe Vera) Leaf Extract and Sodium Lauroyl Methyl Isethionate. There is a small amount of isopropyl alcohol added to the formula that helps with evaporation on your lenses. If any irritation occurrs, flush eyes well with large amounts of water.
Recyclable Packaging
Recyclable Packaging
Recyclable product manufactured from paper. This product can be recycled and converted into a new paper or cardboard products, thus helping to save raw materials, reduce waste and lower greenhouse gas emissions.
Shipping Times
Shipping Times
Standard delivery times:
- UK - 48hours [Free over £25]
- Europe 3-5 business days
- Rest of World 6-7 business days
Reef Safer. Beyond "Reef Safe"
Reef Safer. Beyond "Reef Safe"
At Stream2Sea, we use the term “reef safer” to reflect our commitment to transparency, rigorous testing and continuous improvement to minimize our environmental impact.
Unlike vague “reef safe” claims, “reef safer” acknowledges the complexity of ocean health and our — ongoing efforts — to protect marine ecosystems responsibly.
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Ourecosafe Mask Defog contents are tested to be biodegradable and safe for fishAND it works brilliantly!
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On July 1, 2022 I purchased “2 oz. STREAM-2-SEA reef friendly Mask & Googles Defogger”,,, along with a pair of “OMID Comfortable Polarized Anti-Fog Swimming Goggles” (smoke, all black frame). I swim open water (quarry lake) 3-5 x’s per week during the warmer months, swimming non-stop for 60 to 120 minutes. I’d been using “Vanquisher 2.0” goggles the past several years but, despite correct adjustment, they would always begin digging into my eye sockets after an hour or so, and left me with a bad case of ‘raccoon eyes’. I decided to try out the OMID goggles, seeking greater comfort. The OMID goggles feature softer, larger eye cushions that are dramatically more comfortable. They truly do provide greatly-improved panoramic vision. The inner surface of the contoured plastic lenses have their own anti-fog coating, but such “factory coatings” are notoriously fragile and soon lose their effectiveness. I bought the 2 oz. Stream-2-Sea to help assure that the OMID goggles could remain fog-free as long as possible. Out of the box, I first gently washed the new OMID goggles with a minimal amount of Johnson’s Baby Shampoo (BS), --not their newer “Head to Toe” formulation. They are similar, but not the same. SEE MY PHOTO’s showing the slight differences in their published ingredients. A Word of Caution: When washing plastic-lens swim goggles, you always need to be as GENTLE as possible. A little particle of sand being rubbed across the lenses can scratch the heck out of them, permanently. OK,,, I rinsed my new pair in room-temperature tap water, then applied the smallest amount of BS, and used the slightest finger pressure possible, then rinsed them in the tap water. My tap water leaves ‘spots’ when it dries, so I do a final rinse with some distilled water for a spot-free finish. Once dry, I applied one drop of the Stream-2-Sea anti-fog gel to each inner lens and used my wet finger to GENTLY spread a thin, uniform coating. I then added a tiny amount of distilled water to each lens “cup” and swirled it a few seconds before pouring off the water. I allowed them to air-dry to a clear, streak-free coating, and then put them into my ‘swim bag’, ready for use. I swam 90 minutes in the 83F lake water that next morning. The goggles never leaked, and they never fogged up. The polarized, fog-free view was so much better than before. I finished my swim and I immediately put them into the OMID carry bag that came with the goggles, being careful to not touch the lenses (there’s no clean rinse water available at the lake). Once home, I washed my hands to remove any possible sand particles (which can scratch the plastic lenses) before rinsing the goggles thoroughly under tap water. Then I dabbed a tiny amount of BS onto each wet lens and used a modified* Q-tip to gently clean their fragile inner surfaces. (* I get a Q-tip and pull the cotton to stretch it longer, then use the stretched portion to gently go over the lens surface.) I then rinse the goggles with tap water, followed by a distilled water rinse. Before they dry, I use the Q-tip (or a tiny, soft-bristle artist brush) to paint a uniform coating of the Stream-2-Sea anti-fog gel onto the inner lenses. To smooth out this coating, I add some drops of distilled water to make a little ‘puddle’ in each lens cup. After a few seconds of swirling, I pour off the water and check to see that there are no remaining streaks of the Stream-2-Sea. If there are some streaks, I just rinse them with a few more drops of the distilled water and check them again. Once they are totally streak-free, I ‘stand up’ the goggles to let them air dry (similar to what you do with a washed dinner plate). I’ve now used my new OMID goggles 9 times, and they are still in like-new condition. Not a single scratch, and they never, ever fog. Over the past couple weeks, my swims have included few that were two hours long(in sunny, 90 degree Heat Wave conditions). My old “Vanquisher” goggles would begin fogging up in just a fraction of that time. The Stream-2-Sea anti-fog gel, in combination with the ‘factory’ anti-fog coating on the OMID goggles, has worked perfectly for me. And, the ‘soft-cushion’ design of the OMID googles has completely eliminated the eye-socket discomfort,,, and no more “raccoon eyes”. My goggle-washing procedure may seem very lengthy and tedious when you sit there and read about it, but it soon becomes routine, taking only 5 minutes. I can now enjoy swimming comfortably for HOURS with absolutely no fogging, and it’s keeping my $26 swim goggles looking brand new. The OMID comfort goggles -and- the STREAM2SEA anti-fog gel are an effective combination for any ‘distance swimmer’.
I do a lot of triathlon training and long distance swimming, purchased anti fog goggles, that dont really work about 500 yards in they are fogged up, and I cant see, in the pool its ok, on race day its horrible because its hard enough to see the buoys but fogged up even worse. I bought this spray, tried it in the pool, 2k yards in they are perfectly clear, not a single sign of fogging, very happy, have not swam with such clear vision, nearly ever. very happy with product. I was concerned it may get in eyes, not a worry at all, it's kind of like a Gell, once rubbed in, washes out easy and sticks to the googles only. very impressed.
Went on a 2 week, very intensive snorkeling trip through Caribbean and bought this to try on my gear. Followed directions but still fogged up. Tried using a eye cloth to rub it in, it still fogged up too. What worked finally was to put a small amount on the goggles, DO NOT rinse, and put them on while you're still dry and remove goggles from face as little as possible. Worked beautifully after that. Rinsed out only when getting out of the water.
Delivery was prompt. My wife and I have used Stream 2 Sea products and they are excellent. The defigvis a liquid. The application is to squeeze a drop from the bottle. There is no spray. The defog container us 2 ounces. Don't be fooled by competitors prices. Most other defog is sold in 1 ounce containers. The Stream 2 Sea anti-fog is priced competitively.
having major fog problems here in the PNW, I was desperate to get a clear view since I commute on a dualsport. This stuff works great! I can finally breath as opposed to holding my breath when the faceshield fogs up. It also doesn't have any strong smell. It just works. I combine this with the plastic rainx on the outside and I can ride in the rain and cold days with the visor down.
I recently used this mask defog while getting my dry suit certification, and it performed exceptionally well. The formula isn't as thick as other brands I've tried, making it easy to apply and more effective in keeping my mask fog-free. I experienced zero mask fog, which is quite unusual for me. An added bonus is that this defog solution is reef-friendly, which great to know that I can keep my mask clear without harming coral reefs. This defog offers the perfect balance of performance and environmental responsibility. Highly recommended!
Used this during a couple of dives in Cozumel and had no issues with fogging. Smaller bittle than my old defogger fit much better in my mask box. Reef friendly too.
I purchased this product in need for my glasses, and ski goggles. I wear my glasses under my ski goggles and they often fog up, making it hard to see. After applying the spray to my goggles, I’ve had little to no issues. I have found it needs to be reapplied here and there, but for an affordable product, it works pretty great!

Scuba Guru Podcast: Selling Environmentally Friendly Products with Autumn Blum
As coral reef ambassadors, dive professionals have a duty to promote and sell environmentally friendly products. And, Stream2Sea has created products that are safe for you and the planet.
In this episode of The Dive Locker Podcast hosted by Tec Clark, you will learn about the importance of promoting and selling environmentally safe products with Stream2Sea CEO and Formulator, Autumn Blum.
Listen to the podcast here.
Want to learn more? Read our blog about the reef friendly mask defog here.