Index / Allies of Skin / One SPF 50 Invisible Sunscreen Gel
Allies of Skin

One SPF 50 Invisible Sunscreen Gel.

Allies of Skin One SPF 50 Invisible Sunscreen Gel
Sunscreen

About this product

A clear, lightweight SPF 50 gel sunscreen with broad-spectrum UVA protection and water resistance up to 80 minutes, designed to apply invisibly without heaviness or residue.

Full ingredients

Guru Score

66%

Mixed

6 experts · Moderate agreement
6Gurus
3Yay
1Mixed
2Nay

What they liked

  • Truly invisible, clear gel texture
  • Lightweight and soaks in without heaviness
  • Water resistant up to 80 minutes

What they flagged

  • Higher price point

What the gurus are saying

This gel disappears completely on skin without leaving any trace or weight behind, a quality the experts who tested it single out as rare among water-resistant sunscreens. It remains invisible even under makeup, resists sweat and water for 80 minutes, and handles repeated reapplication without feeling heavy or breaking anyone out; those with oily skin may particularly appreciate its sebum-control benefit. The main trade-off is price, so experts suggest reserving it for days when you genuinely need water resistance rather than daily wear.
Synthesized from 6 expert reviews · most recent take August 2026

What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored
~Yay
"This one by Allies of Skin, hands down the best I have ever, ever tried."
Top Pick: water resistant sunscreen
All 15 takes from Mad About Skin
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"This one by Allies of Skin, hands down the best I have ever, ever tried."
New Viral $13 SUNSCREEN Changes Everything - Geek & Gorgeous Zero Feel SPF 50
"The Allies of Skin One SPF 50 Invisible Sunscreen Gel [...] is a bespoke formula that is unique to this brand. [...] They've come up with their own individual formulation. [...] This is one of the only truly invisible water resistant sunscreens. If I'm going outdoor swimming, which I like to do a lot in summer, I'll be wearing this for that water resistance. [...] This is a slightly higher price point product, so I use this just exclusively when I need it, when I'm in and out of the water. [...] You don't need water resistant sunscreen every day of the year. You need it when you need it. When you're going in and out of the water, that's when I'll reach for a product like this."
MAXIMUM RETINOL RESULTS - Skincare To Use With Retinal, Tretinoin and Retinol
"This is the Allies of Skin One SPF 50 Invisible Sunscreen Gel. This also has a sky high protection factor when it comes to those UVA rays alongside that SPF 50, so this is truly broadspectrum. This I use when I'm in and out of the pool and I need something that's water resistant. For day-to-day wear I'll go for this one which is more lightweight. Both of these are fantastic, give you that truly broadspectrum coverage."
BEST NEW SUNSCREEN 2024 - Better Than Korean Sunscreen?
"It is completely invisible. It just disappears into nothing. This has such a gorgeous finish on the day, it's like velvet. You touch your skin and if anything you find yourself touching your face an awful lot with this because you can't believe how smooth it is. Look at that, gone, literally gone. That was ten seconds of working in and you can't even see it. When I first tried this I was genuinely speechless. There is zero scent to it which I love because whilst a lot of people try to avoid artificial fragrance, if you don't use artificial fragrance in sunscreens they can smell really chemically. This doesn't have that. There's no artificial fragrance but there's also no off-putting chemically smell either which I love. Very neutral in terms of scent which is great. But I just look at that finish like you can't tell me that isn't the most impossibly invisible finish you've ever seen on a sunscreen. For me that blend of like multi actives, the antioxidants helping you to streamline is what sold it for me, but then I applied it and the finish like sealed the deal."
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"Similar if you go to Allies of Skin, this is one of my other favorite sunscreens. This was the one invisible sunscreen gel by Allies of Skin. This has a PPD rating of 22. Again the brand will let us know so we know exactly what we're getting."
Worlds Best SUNSCREENS 2024 - Skincare Awards
"This one by Allies of Skin is for me the best. Most water resistant sunscreens are really heavy, they weigh you down, they make you feel like you're wearing a mask. This one doesn't, it's really lightweight and you're getting that water resistance for 80 minutes, which is great. I wear this one when I'm out swimming or if I'm jogging, if I'm working up a sweat. I'll have this one on protecting my skin without feeling like I'm wearing anything. It's an invisible gel, so it's the easiest sunscreen you will ever find to rub in. And because it has some dimethicone in here, it's nice and hydrating, so a really great option if you have very dryness-prone skin. It's fragrance-free and doesn't have that chemically smell that sometimes chemical fragrance-free sunscreens can have. It's just really neutral and I love it. You've also got some great added skincare in here, so you've got some antioxidants, you've got some skin conditioning ingredients, vitamin C, green tea, all great extra protection for the skin."
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"It is a gel invisible sunscreen which I love. Gel sunscreens tend to be really really lightweight and it's gone. For a water resistant sunscreen I have never known one that sinks in this fast, it just leaves behind nothing on the skin and this I absolutely love because it's also nicely hydrating which is a nice extra bonus. You can use this as your moisturizer and sunscreen in one. It just disappeared, it feels like I have nothing on the skin. You could absolutely use this as your daily go-to sunscreen even if you don't need a water resistant sunscreen, this would work for everyone, but if you're looking for something that has that water resistance that's going to keep everything locked in no matter whether you're sweating or swimming, this is the product that I would recommend because not a single water resistant sunscreen I've ever tried has come close to this level of invisibility on the skin. Such a great product."
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"This is their One SPF 50 Invisible Sunscreen Gel. I love this because it kind of does what it says in the name. It's truly invisible. You put this on the skin and it just disappears without a trace. But it leaves behind that proven SPF 50 and a high level of UVA protection, too. It's like you're not actually wearing anything. It feels invisible. You just don't know it's on the skin, and that is the mark of a good sunscreen. You can put makeup on top of it if you want to and it doesn't budge or peel. It's just a real great all-rounder."
Top 10 SKINCARE FAVORITES 2025 - Skincare You Have To Try
"This is the Allies of Skin One SPF 50, this is an invisible sunscreen gel which for me is a product that I use when I need that water resistance. Day-to-day I'll use a lightweight cheaper sunscreen, but when I go outdoor swimming, which is one of my favorite things to do in summer, I want the skin protected, I want that locked-in water resistance and this is the one that I reach for. Water resistant sunscreens are thick, they're heavy, they're gloopy, they're not nice to apply. This is the one exception. It feels so so light on the skin, it disappears without a trace and you have that 80-minute water resistance locked in. It's not the cheapest, which is why I use it when I need it outdoors swimming. Day-to-day I'll go for something cheaper, but I like to have this in my skincare collection for when I really do need it. One of my absolute favorites. There's a time and a place for it when I'm outside swimming."
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"This is the only lightweight, truly invisible, water resistant sunscreen I've ever found. All the others are heavy. They weigh you down. They're more likely to break you out. I want a product that is truly invisible. This is an entirely clear gel and that just works. This is water resistant for 80 minutes, which is more than enough for me to get that swim out of the way. Because this comes with a slightly higher price point, I will save that for the days where I need that water resistance. But I definitely think getting a water resistant sunscreen in your skincare collection is a must for when you need it. And this is one of the best, lightest weight ones I have ever found. And I absolutely love it."
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"This is the Allies of Skin The One Invisible Sunscreen Gel, and this is a personal favorite of mine because it actually uses a really nice dose of aloe to get you some extra hydration. It uses US approved filters, but look at that, it's transparent, so there'll be no ashiness or white cast and it disappears without a trace. Truly one of the nicest sunscreens I think I've ever reached for and just feels great. It's also water resistant, so if you're looking for water resistance, if you're in and out of the pool, you're jogging, you're toweling off, this is one of the best water resistant sunscreens I think you're ever going to find. It's not the cheapest, but I think for a water resistant US approved sunscreen, this is the best you're going to find from the Korean sunscreen market."
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"This is the best water resistant sunscreen you will ever ever try. It is truly invisible. In fact it's an invisible gel and it just feels beautiful on the skin. Water resistant up to 80 minutes which I love. And most water resistant sunscreens are a little heavy because of the technology you need to make it water resistant. Not with this. It is truly invisible. It is impossibly lightweight and it feels gorgeous. So if you're somebody that's in and out the pool maybe you're looking for that water resistance from your sunscreen, I think this is amazing. If you're looking for an invisible water resistant sunscreen it doesn't get better than this. I absolutely love it."
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"This is packed full of aloe as its key ingredient which you don't see in a lot of sunscreens. Aloe is great for calming and soothing the skin and I love this. It's also packed full of antioxidants so it could be an antioxidant serum and sunscreen all in one, so like a two for one there, and you've got a great blend of anti-hyperpigmentation ingredients such as licorice root. This also applies perfectly on top of itself. You can reapply this six times during the day and that sixth layer still looks as amazing on the skin as that first layer does. That to me is something special and worth spending a little bit more for. This is great if you're someone that reapplies and always has trouble reapplying over the top of whatever sunscreen you're already using. You also get this water resistant to 85 minutes which is great if you're swimming or in and out of the pool. This is a really really nice option, completely invisible as it's a chemical sunscreen gel, and like I say just a phenomenal finish on the skin. I really really like this one."
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"The Allies of Skin invisible sunscreen gel is great, I love it and use it when I need a water resistant, waterproof sunscreen."
5 SCANDALS ROCKING THE SKINCARE INDUSTRY - The Ordinary, Allies Of Skin & More
"Their sunscreen gel had its viral moment for its water resistance yet impossibly lightweight finish, and I've used this sunscreen for years and had no problems with it. But one specific batch couldn't guarantee the stability of the formula to give the length of protection they were claiming, so it actually failed testing and got recalled. As far as I'm aware they followed all the legal requirements for the recall, so there's no shadiness around that, but they could have made it easier to claim your refund, it's quite a cumbersome process, and I think that criticism is absolutely valid."
~Nay
"Allies of Skin is definitely doing the right things. This is just more of an aesthetic preference. Some people will like it, some people won't. I just didn't personally like it."
~Mixed
"This is a chemical sunscreen with 80 minutes of water resistance. It has a clear gel primer type of texture that is beautiful under makeup if you wear makeup, and undetectable if you don't wear makeup. The reason it didn't make my personal top sunscreen faves for newer launches is because that silicone gel primer-like texture is not a personal fave of mine. It feels a little bit suffocating on me. But I also find that I'm in the minority here. Most of my friends who try this are like, 'Oh, this is amazing.' Men tend to really like this as well. There's just something very unique about it where it doesn't feel like a traditional lotion or cream, so if you have someone who's maybe not that into skincare, I think they would really love it. But also, if you have someone who's really into makeup and they like that makeup primer feel, this would be a total win. It's got the 80 minutes of water resistance and it's clear. It just checks so many of the boxes of what I would recommend for a sunscreen that I couldn't not include it."
~Yay
"This is one by Allies of Skin, it is the SPF 50 Invisible Sunscreen Gel which has no tint to it that also works very beautifully. You don't have to stick to a mineral sunscreen."
~Nay
"I love their products they are on the pricey side and I was really excited because they came out with a clear sunscreen and it is a chemical formula but unfortunately this is so greasy on the skin it doesn't sort of set to my skin and set up like most sunscreens you put them on they might be a little tacky a little greasy or a little bit dewy at the beginning and then you let them sit for like 5 or 10 minutes and they adhere to the skin but unfortunately this one never does it just sits on top of my skin and the amount that you have to use to get the teaspoon that you need for your face is just way too much and it just ends up being a greasy mess so unfortunately this was a fail for me."
~Yay
"It's called the One SPF 50 Invisible Sunscreen Gel. This product is completely clear, it has tons of skin-loving ingredients, and it's incredibly lightweight on the skin, which makes it easy to apply over and over again. So it's perfect for summer when you're out at the beach or you're out in the elements and you need to keep putting stuff on. This is a great product."
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"It's called the One SPF 50 Invisible Sunscreen Gel. This product is completely clear, it has tons of skin-loving ingredients, and it's incredibly lightweight on the skin, which makes it easy to apply over and over again. So it's perfect for summer when you're out at the beach or you're out in the elements and you need to keep putting stuff on. This is a great product."
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"Your sunscreen is phenomenal. I've made it totally clear, you can build it again and again and again, and it controls the sebum right, it makes you not produce more oils, which in the summertime is just genius. We didn't invent the clear SPF but I think we perfected it. Part of the magic is really thinking about how it will sit on the skin and the dry down, and more importantly how it would feel on the skin after say an hour and a half, and if you reapply in 2 hours how would it feel with a second and a third layer. That was the thing we really really obsessed about. It's made with an aloe vera gel base so it doesn't have that heavy silicone feel because when you use chemical filters and they're all oil-based so it's very oily, so you have to balance that out."
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"This product retails for $45 for 50 mls or 1.7 fluid ounces but I have a discount code so if you use so marry the one it gives you 20% off this product as well as the entire site and in my opinion that is a steal. On a scale from 1 to 10 this puppy's getting an 11. It will be an automatic reorder. I will be using my own code and I suspect that Gary and I might be fighting over this one."
☀️ My Summer Must-Haves ☀️
"It is called the One, it's an SPF 50 invisible sunscreen gel and it is amazing. It is completely clear, it soaks in beautifully and is completely weightless. Plus it is perfection under your makeup, it's almost like a primer. The best thing about this is it has a technology that allows you to apply it over and over and over again without it feeling heavy. In my opinion this is what sunscreen should be. It actually also helps control sebum production, so for those of you with oily skin or in particularly hot climates this is going to be a big bonus."
✨ My Beauty Empties: Skin, Hair & Body Care | Will I Repurchase?
"Allies of Skin One SPF 50 Invisible Sunscreen Gel is a fantastic sunscreen. It's clear, it's lightweight, and it's perfect for reapplication. You can put it on over and over and over again without it getting heavy or upsetting your skin. I've gone through so many tubes of this. The only reason it's not in my top tier is because it's pricey and I don't need heavy coverage in the winter, so I won't replace this until spring or summer."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Vitamin C

Topical vitamin C is an antioxidant with reasonable evidence for dullness and uneven tone. It breaks down in light and air, so how a product is formulated and packaged matters as much as the percentage on the front.

Source: DermNet

Niacinamide

Niacinamide has evidence behind it for redness, uneven tone and supporting the skin barrier, and it is usually well tolerated even by skin that reacts to most things.

Source: DermNet

Sunscreen filters

Sun protection is the best evidenced way to slow visible ageing, and the filters are what does the work. Mineral and chemical filters both protect when a product is applied thickly enough and often enough, which is where most people fall short rather than on the choice of filter.

Source: DermNet

Frequently asked.

What is Allies of Skin One SPF 50 Invisible Sunscreen Gel?

A clear, lightweight SPF 50 gel sunscreen with broad-spectrum UVA protection and water resistance up to 80 minutes, designed to apply invisibly without heaviness or residue.

Is Allies of Skin One SPF 50 Invisible Sunscreen Gel worth it?

The gurus are split. 3 of the 6 gurus give it their stamp of approval while 2 would skip it, which lands it in the middle at a Guru Score of 66%.

What is Allies of Skin One SPF 50 Invisible Sunscreen Gel's Guru Score?

Allies of Skin One SPF 50 Invisible Sunscreen Gel holds a Guru Score of 66%. That is our read on how warmly the experts talk about it, based on the verdicts of 6 expert reviewers we have collected. At least one expert has named it a Top Pick in its category.

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