Zinc Sunscreen | Mineral zinc | SPF 50+

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Reef safe, hypoallergenic, 100% plant based ingredients.

Size: 30g

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Free worldwideShipping over $250 AUD
12 month Warranty
  • Reef-safe formula to preserve our oceans

  • Zero chemicals, 100% plant based ingredients

  • Hypoallergenic formula to suit sensitive skin


Our Zinc sunscreen, SPF 50+ mineral zinc for face, was formulated with the highest quality, non-toxic ingredients and comes in earth-friendly packaging to keep you and our planet protected for years to come.


Created with care and intention, our non-toxic zinc sunblock is safe for all skin types and provides superior sun protection. Mineral-based sun filters reflect UVA & UVB rays for broad-spectrum protection from harmful rays.


Reef-safe formula to preserve our oceans

Non nano zinc oxide for peace of mind

Earth-friendly packaging to respect Momma Earth

Matte finish with tinted glow for minimal white cast

Broad-spectrum protection against UVA & UVB rays


Our Mineral Zinc SPF 50+ sunscreen was created to check all the boxes. We’ve crafted a good zinc sunscreen that’s safe, lightweight in texture, gentle in application, and long-lasting in coverage.

We needed a natural sunscreen that could provide superior protection, without the thick, greasy coverage or chemical-filled ingredients. We wanted something gentle on our skin, kind to the planet, and effective for long days in the harsh sun.

Sunscreen is meant to be worn every day, but we’ve never seemed to find one that checks all the boxes and left us feeling confident in the companies we were supporting until now.

Perfectly compact, this zinc sunblock is just the right size for on-the-go, running out the door, or traveling. Always be prepared for time in the sun with a tin in your beach bag, car, or pocket.

OSB’s Mineral Zinc Sunscreen goes on smooth, locks in moisture, and restores the skin’s natural barriers with its nourishing ingredients. Beachside, poolside, or out running errands, our natural zinc sunblock is your skin’s new best friend. Wherever you go, this non-toxic mineral sunscreen containing zinc oxide is perfect for keeping that beautiful face young, healthy, and sun-burn-free!

Not to mention, you can do good for others because 10% of every purchase gives back to the beautiful culture of Bali, supporting and sustaining those who need it most.

Ingredients: Zinc Oxide (sun protection agent), Cocos Nucifera (coconut oil), Cera Alba (beeswax), Microcrystalline Wax (petroleum-based wax), Theobroma Cacao Seed Butter (cocoa butter), Caprylic/Capric Triglyceride (emulsifier and skin-nourishing agent), Titanium Dioxide (sun protection agent).

Choose from two convenient sizes: 30g (1oz) or 75g (2.6oz)

UVA & UVB Broad Spectrum.
SPF 50+
100% Mineral Based.
Fragrance Free.
Reef Safe.


Worldwide shipping from Bali & Australia. Free Shipping for orders $250+.

Regular International parcels take approximately 3 weeks.

Express shipping option available at checkout for $30 AUD.

Please read more of our Shipping Policy here.


We accept exchanges or returns for change of mind, as long as it is processed within 14 days.

Please follow instructions on our Returns page.

Have a question? You can reach us below or on live chat.


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Recycled Materials
UPF 50+ Protection
Luxuriously Soft Fabric
Made With Love

Customer Reviews

Based on 3 reviews
Dominique Abraham (Sydney, AU)
Best zinc eva!

OS Natural Zinc is seriously the best zinc on the market, its a 'must have' in my dive kit. Im teaching everyday in the ocean & this is the only zinc that protects my face & actually stays on the entire session. Its easy to apply on my skin & not cakey like other zincs. Highly recommended for ocean lovers!

Love this brand!

I brought a few different suits and a bag and the zinc! Love all of them! So happy. the zinc is so nice on the skin!


It took nearly a year for them to sort out the mistakes with my order. Worst customer service ever. Would not recommend. Would not buy again.

Hi Dawne,
It was a trying time in Covid with many obstacles, delays and mistakes, and it was also very drawn out process, as you were frequently travelling and unable to receive the items we sent.

Perfect two piece cut

Our two piece bikinis are made with a luxurious sustainable buttery soft fabric. 
They are the perfect intersection of sporty and fashionable.  With a comfortable seamless design, both functional and flattering and a tailored feminine design that is suitable for leisure or athletic activities.

Designed for comfort

We’ve designed our swimsuits for comfort right down to the smallest detail. The luxuriously soft fabric, double lined, with innovative cupless support and smooth seams will hold you in and support you, with all your water activities.

Sustainable Swim

We value slow fashion over fast with a focus on sustainable fabrics and ethical production. Crafted from regenerated nylon that is designed to last twice as long as your regular swimsuit. Our swimwear is designed & made in Bali with love, with 10% of each sale donated to those in need through our Giving Back initiative.


We ship all our orders from Australia and Bali. Regular post can take up to 3 weeks, and express 7-10 days.

We recommend to handwash your items with bio degradable soap and with cold water.

Yes! Econyl fabric is extremely durable and will last twice as long as a regular swimsuit.

Yes! We sell masks, fins and more in our retail shop in Bali.