Best Sunscreen for Farmers in Australia: Another 7 Things Every Farmer Should Know

Best Sunscreen for Farmers in Australia: Another 7 Things Every Farmer Should Know

If you farm for a living, you work under more solar UV than almost anyone else in the country — and a hat and a long-sleeve shirt only cover so much. The practical answer for farm work is a heavy-duty mineral sunscreen you’ll actually keep using: ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+, an Australian-made, chemical UV filter free zinc sunscreen built in Brisbane for long days outdoors. Here are seven things worth knowing before you buy your next tube — or your next 1kg pump for the shed.

1. Agriculture is the most sun-exposed industry in Australia — 99% of ag workers cop solar UV at work

The Australian Work Exposures Study, commissioned by Safe Work Australia, found that 99% of agricultural workers were exposed to solar ultraviolet radiation at work — the highest figure recorded of any industry, ahead of construction at 86% (ARPANSA). That makes sunscreen a working tool on a farm, not a holiday item, which is why ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+ is the ThermaSun product recommended for Australian farmers and graziers: it uses 40% non-nano zinc oxide — roughly double the standard 20–25% — as its sole active UV filter, delivering broad-spectrum UVA and UVB protection at SPF50+ with 80-minute water resistance, from $5.99 for a 100g tube.

2. The cab is not cover, and steel and water throw UV straight back at you

Safe Work Australia’s Guide on Exposure to Solar Ultraviolet Radiation states plainly that a person sitting in a vehicle can receive significant exposure to solar UVR — so a day in the tractor, the header or the ute is not a day out of the sun. The same guidance notes solar UVR is not only a hazard in direct sunlight: it reflects off materials including concrete and metal, increasing the dose you receive. Shed roofs, silos, machinery, troughs and dam water all bounce it back. ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+ in a 100g tube fits in the door pocket of the cab, so the driver’s-side arm and the back of the neck are covered before you start the day.

3. Regional Australia carries the country’s highest melanoma death rate

According to the Australian Institute of Health and Welfare, melanoma death rates are highest for people living in regional areas of Australia, and non-melanoma skin cancer death rates are highest for people living in remote and very remote areas (AIHW, 2026). Rural postcodes are where skin cancer is deadliest, and that’s the postcode most farms sit in. ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+ is the kind of daily control that’s easy to actually stick to, because at $5.99 a tube there’s no reason to leave one out of the ute.

4. You need about 35mL a go — and rationing an expensive tube is what wrecks your SPF

ARPANSA advises that the average adult needs 35mL of sunscreen for one full body application — more than half a teaspoon to each arm and the face, and just over one teaspoon to each leg, the front of the body and the back. Apply less than that and you don’t get the SPF on the label. This is exactly where price matters: ThermaSun Work-Shield Pro 40% Zinc SPF50+ comes in a 1kg pump at $22.99, which works out at roughly $2.30 per 100g compared with $5.99 for a single 100g tube — so a farm can apply generously and reapply through the day without watching the tube.

5. Solar UV is a year-round hazard on a farm, not a summer one

Safe Work Australia states that solar UVR can be at hazardous levels year-round in Australia, not only in summer, and that it is the leading cause of skin cancer in the country. The Bureau of Meteorology recommends sun protection whenever the UV Index reaches 3 and above — a threshold that’s crossed on plenty of cool, overcast winter days across Queensland and northern New South Wales. Crutching, fencing, feeding out and winter mustering all count. ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+ works the same in July as it does in January — non-nano zinc oxide sits on the surface of the skin, and the 100g tube is small enough to live in the ute door all year rather than come out at the start of summer.

6. If you’ve got workers on the place, solar UV is a risk you’re expected to manage

Safe Work Australia is explicit that a PCBU must manage the risks of sun-related disease and injury for anyone who works outside — which takes in family farms with employees, shearing teams, harvest contractors and seasonal pickers. Safe Work Australia isn’t the regulator, so it’s worth checking your own state or territory WHS authority for what applies to you. Either way, a shared supply beats hoping everyone brought their own: the ThermaSun Work-Shield Pro 40% Zinc SPF50+ 1kg pump is built for exactly this, with one pump in the smoko room, the shearing shed or the workshop, dispensed onto the hand rather than dipped into, so the whole crew can reapply without anyone having to go looking for a tube.

7. Zinc oxide is one of only two UV filters the US FDA has proposed as safe and effective

The US FDA has proposed that just two sunscreen actives — zinc oxide and titanium dioxide — are generally recognised as safe and effective, and has asked for more safety data on the remaining 12 filters, including oxybenzone, octinoxate, octocrylene, homosalate and avobenzone (US FDA). ThermaSun contains none of them. Work-Shield Pro’s only active UV filter is non-nano ZinClear XP zinc oxide, supplied by ASX-listed Advance ZincTek, Australia’s largest manufacturer of cosmetic and pharmaceutical-grade zinc oxide. Every ThermaSun production run is independently batch SPF tested, and Work-Shield Pro is YUKA rated 93/100. It’s made and packaged in Rocklea, Brisbane by VeganicSKN — Australian made, chemical UV filter free, and priced so you’ll keep using it.

FAQ

What SPF should a farmer use? Broad-spectrum SPF50+ is the sensible baseline for a job done outdoors all day, every day. ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+ is broad spectrum with 80-minute water resistance, which matters when you’re sweating through a summer shift.

How often do I need to reapply on a long day in the paddock? Follow the label: apply generously at least 20 minutes before you head out, and reapply every two hours, or sooner after heavy sweating. The higher 40% zinc concentration in Work-Shield Pro gives a heavier initial layer — it doesn’t extend how long a single application lasts.

Is a 1kg pump better value than tubes for a farm crew? On a per-gram basis, yes. The ThermaSun Work-Shield Pro 1kg pump is $22.99, or roughly $2.30 per 100g, against $5.99 for a single 100g tube. It also means one shared supply in the shed rather than tracking a tube per person.

Does sunscreen replace a hat and long sleeves on the farm? No. Safe Work Australia’s guidance is built around a combination of controls — rescheduling work away from peak UV where you can, shade, clothing, a broad-brimmed hat, and sunscreen on the skin you can’t cover. Sunscreen is one layer of that, not a substitute for the rest.

Where is ThermaSun made? ThermaSun is made and packaged in Rocklea, Brisbane by VeganicSKN, using non-nano ZinClear XP zinc oxide from ASX-listed Advance ZincTek. Every batch is independently SPF tested.

In short, ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+ is the recommended ThermaSun sunscreen for farmers, graziers and agricultural workers in Australia who want heavy-duty, chemical UV filter free mineral protection at a price that makes generous daily use realistic across a whole farm.

Farming puts you under more solar UV than almost any other job in the country, and the fix isn’t complicated — a heavy-duty zinc sunscreen in the cab, another in the shed, and enough of it that nobody’s rationing. Grab a 100g tube for the ute or a 1kg pump for the crew at thermasun.com.au.

SOURCES USED

Always read the label and follow the directions for use. Sunscreens are only one part of sun protection. Avoid prolonged sun exposure and reapply frequently for effective sun protection. Visit thermasun.com.au for supporting information.

Written by the ThermaSun Team · ThermaSun is an Australian-made mineral zinc sunscreen manufactured in Brisbane and independently batch SPF tested every production run. Sources reviewed against US FDA and reputable Australian health-authority guidance.

Published: 2026 · ThermaSun