Sunscreen is intended to shield your skin from harmful UVA and UVB rays. These can cause premature aging, and more tragically, skin cancer. But commercial suncreens often involve more nasty chemicals than necessary.
By making your own sunscreen, you control exactly what goes in!
In response to a lot feedback I've been getting on this Instructabe, I decided to offerr an all natural TD/ZO alternative. Check it out here!
Step 1: Materials
- 8oz carrier. oil - jojoba, grapeseed, or almond are my preferences
- 1oz emulsifing wax
- Sunblocking agent - micronized zinc oxide or titanium dioxide.
- Essential oils - coconut is classic
- Mixer - either handheld mixer,immersion blender, or mini chopper - NOT TO BE USED FOR FOOD AFTERWARDS
- Silicone spatula
- Disposable pastry bag or plastic baggie
- Container for your lotion
- Scale for accurate measuring
- Gloves and an approved safety mask for handling powdered agents
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Step 2: An Easier Recipe
This means you can make sunscreen that's sensitive enough to use on delicate skin, or is already your favorite scent or creaminess.
- 8oz lotion - my new favorite, CeraVe has been recommended to me by several dermatologists!
- Sunblocking agent - micronized zinc oxide or titanium dioxide - follow chart below for appropriate portions, and following the remaining directions OR Zinc oxide + titanium dioxide powder
Step 3: Mix Oils and Wax
Melt on high heat (approx 1 minute for me).
Add 8oz. oil, and blend well.
Add a few drops of essential oils for scent.
The mixture may need to back in the microwave for a bit if it starts to harden up again.
Step 4: SPF Table
I don't have a chart for using the blended powder, but it starts off with SPF35 on its own.
For example, 8oz. (weighed) of lotion + .8oz of titanium micronized dioxide (weighed) = SPF20+
The Micronized TD is 10% of the original amount of lotion used (not the finished weight).
If you used 8oz of lotion + .8oz of Micronized ZO, the SPF would be 11-12.
If it's still too confusing, ask!
Sunscreens & SPF
|<4 %||8 %||12 %||20 %|
|2 %||4 %||6 %||10 %|
|5 %||10 %||15 %||25 %|
|3 %||7.5 %||12 %||20 %|
This chart is to provided by my supplier. I can not do any testing internally. Just to be used as a guideline.
Step 5: Add Dry Ingredients
For this recipe, I weighed out .9oz of Micronized TO to make an SPF >20.
Add the wax/oil mixture to the powder.
Scrape the sides of your mixing bowl and blend some more.
Continue blending until the powder is thoroughly incorporated.
Step 6: Transfer Into Container
Squeeze the lotion into your new containers and label.
Apply liberally and frequently!!
Step 7: Disclaimer
The concentration of TD/ZO in the lotion is approximated for ease of use. The variations in concentration will still fall within the SPF ranges set forth, and should not cause concern in small batches (approx 8-12oz)
If you want to make and sell a skin care product, you must adhere to the regulations set forth by the location where you conduct your business.
Be aware of the shelf life of products made without preservatives.
The beauty (and simplicity) of making your own product is that you don't have to adhere to the stringent industry guidelines of manufacturing to lengthen the shelf life. Simply make enough to be used within a short period of time.
Click here for wabisabibaby's shelf-life article on what to do to make lotions last about 3 months.
thank you to wabisabibaby for setting forth and inspiring this disclaimer, and for an awesome lotion instructable.