I love to cook, and I love to DIY. I’m also terrible at following instructions. I always second-guess recipes: “but what if I did it this way instead?” Sometimes that means disaster. But sometimes I get lucky.
So I feel I should preface this post with the following caveat: For entertainment purposes only. Don’t sue me if you end up getting skin cancer or lung cancer or hangnails. If you want actual instructions, see the real Instructable.
That said, this was a fun and easy project. I read through the Homemade Sunscreen Instructable, and skipped straight to step 2.
If you want your sunscreen NOW, and you don’t want to mess around with making your own lotion, just buy your favorite lotion from the store, and add your zinc oxide or titanium dioxide to that!

We started with 5 oz of Brambleberry Organic Body Butter

We measured about an ounce each of Zinc Oxide and Titanium Dioxide

We belatedly donned our face masks

It's important to keep the dust out of your nose, mouth, and eyes.

We mixed in about 1T each sparkly gold & silver mica to the powder.

It was awful! Way too thick. So we gave up and went to bed.

It was so thick I looked like a zombie.

The next day I bought more lotion, and we added about another 5oz.

Much better!

So we bottled it up to use.
Additional Notes
- Before I went to bed that night, I actually melted about 1/4 C of coconut oil into the too-thick lotion. It didn’t mix in at all. But the next morning at room temperature, I mixed it in by hand, and it worked really well. I’ve since made more without the coconut oil, and the new batch isn’t as waterproof. This batch? Stays on after washing in the shower and toweling off. So, though it was a happy accident, I’ll probably add it again to the next batch.
- I chose the Everyday Shea lotion because it was rated a reasonable 4 by the EWG, and cost a fraction of other lotions available at my local natural foods store.
- We added more mica at the end.
- It’s not a great idea to use sunscreen from a wide-mouthed jar, and it’s a really stupid idea to let kids dig their own sunscreen out of a glass jar. This jar is storing the extra, and we’ll put a day or two’s worth at a time into the small plastic jar the kids use.
Why did I bother with this project? Well, it was fun. And sparkly. And I was really curious about whether I could make sunscreen that would end up with a fairly good EWG rating that didn’t cost an arm and a leg. Goddess Garden mineral sunblock costs about $3/oz. You’re supposed to use an ounce each time you apply, apply every two hours, and we’re out in the sun a lot.
How would I rate this sunscreen? Well, it seems to stay on in water about as well as either Goddess Garden or Jason Naturals sunscreens, the two big ones we’ve used this summer. It’s about halfway between the two in terms of texture. Jason is stickier and thicker, and Goddess Garden is thinner, less sticky, and stays on less well.
Is it safe? Who knows? This was mostly a fun kitchen experiment. But in any mineral sunblock, it’s the actual mineral doing the blocking, and that’s what you can see when you look at thick white sunscreens. So it probably actually does work. But we’re also pairing it with protective sunblocking clothes and hats, and trying to stay in the shade in the brightest part of the day. And if we start turning pink or brown, we’ll suck it up and get a second mortgage for the real stuff.