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SPF 50 Sun Stick

SPF 50 Sun Stick

Regular price $24.00 USD
Regular price $24.00 USD Sale price $24.00 USD
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Face your next big adventure with our biobased SPF 50 Sun Stick. Featuring Microalgae Oil in a 100% mineral sunscreen with non-nano Zinc Oxide, it protects your skin from the sun’s harmful rays. Designed for portability from sunrise to sunset, its Broad Spectrum UVA and UVB SPF 50 protection is dermatologically tested, vegan and Hawaii Reef Compliant.


  • Broad-spectrum SPF 50 UVA/UVB protection from the sun  
  • Water Resistant for 80 minutes of activity
  • Glides on smoothly with a non-greasy feel 
  • No added fragrance 
  • Oval packaging for an easy grip and an easy fit in pocket 
  • Size: 0.67 oz. / 20 g

How To Use

Apply liberally to face or body 15 minutes before sun exposure. Spread by hand and rub into skin.


Microalgae Oil: Helps reduce moisture loss 

Non-Nano Zinc Oxide: UV Blocker to protect your skin from exposure to the suns rays

Cutleaf Ground Cherry Extract: Natural skin soother

Full Ingredient List

Active Ingredients
: Zinc Oxide 25%. 

Inactive Ingredients: Helianthus Annuus (Sunflower) Seed Wax, Isoamyl Laurate, Ethylhexyl Olivate, Caprylic/Capric Triglyceride, C13-15 Alkane, Polyhydroxystearic Acid, Oryza Sativa (Rice Bran) Oil, Quaternium-90 Bentonite, Capryloyl Glycerin/Sebacic Acid Copolymer, Prototheca Moriformis (Microalgae) Oil, Theobroma Cacao (Cocoa) Seed Butter, Isostearic Acid, Lecithin, Polyglyceryl-3 Polyricinoleate, Triethyl Citratem, Squalane, Physalis Angulata (Ground Cherry) Extract, Rhododendron Ferrugineum (Alpenrose) Extract, Undaria Pinnatifida (Wakame) Extract, Saccharomyces Ferment, Laurel Lysine, Tocopherol Acetate,  Tocopherol

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Does this product go on clear?

As athletes spending hours outside, we wanted to develop a sunscreen that not only worked great, but felt great going on as well. With the first swipes, you might notice a light white cast, depending on your skin tone. After application rub it gently into your skin.

Is this a mineral or a chemical sunscreen?

WTHR SPF 50 Sun Stick is a 100% mineral sunscreen, not a chemical sunscreen. We use non-nano zinc oxide, which provides broad spectrum UVA/UVB sun protection. It does not contain the chemical sunscreens Oxybenzone or Octinoxate.

Is the SPF 50 Sun Stick reef safe?

There is no FDA-regulated definition for this, so we choose "Hawaii Act 104 Reef Compliant" as our standard. All WTHR Protect products are formulated without the chemical sunscreens Oxybenzone and Octinoxate to meet the requirements of Hawaii Act 104 Reef Compliant regulation, which notes those ingredients’ negative impact on the marine environment.

Can I use sunscreen products on my baby?

Yes, you can! According to FDA guidelines, our sunscreen can be used on infants 6 months or older. 


We know that our environments change quickly and that affects our skin.

Microalgae are incredibly adaptable and resilient microorganisms, having evolved over the last 1.5 billion years to thrive in some of the harshest of environments.

We look to them to provide a better oil in support of skin health, created from nature and enabled by biotech.

Learn more about this ingredient powerhouse:

All About Microalgae

Customer Reviews

Based on 3 reviews
Jeremy Handly
You've got a keeper!

Overall, I'm quite impressed with the WTHR sun stick. Application is super easy and seems to protect amazingly well. I didn't feel the need to constantly reapply and I could work it into my skin pretty easily so it doesn't make me look paler than I already am. Plus, it's not super bulky, so you can keep it on you during activity. The fact that it's bio and mineral based is a bonus too. Would recommend 10 out of 10.

Light and Non-Irritating

I was lucky enough to test out the sun stick pre-launch. I have used it this winter while ski touring and this spring while biking. It's great! It goes on smoothly and blends in nicely after rubbing it in. I have very sensitive skin so I hate wearing sunscreen on my face (bad, I know) but I haven't broken out after using it. It doesn't drip into my eyes and stays where it needs to even in peak sweat sesh.

Brodie Mead
Best Sunstick I've Found

As a self proclaimed sun stick aficionado, this is the best I've found. It's packable enough to bring on every adventure without a second thought. Unlike most other mineral sunscreens, this one rubs in well and doesn't get all gritty or runny when I start to sweat, but it also doesn't get hard and chalky when used in cold conditions. I've mostly used it on my face and backs of my hands when ski touring. I think it will be great for arms and legs as well during bike season! Its quick to reapply often without much effort. Stoked on this one!