Watermelon Mint Lip Scrub
Heated phase
5.325g | 35.5% watermelon seed oil
1.65g | 11% stearic acid
7.5g | 50% white sugar (USA
0.075g | 0.5% pink mica
0.225g | 1.5% poppy seeds
Cool down phase
0.075g | 0.5% Vitamin E MT-50 (USA
0.15g | 1% peppermint essential oil
Prepare a water bath by bringing about 3cm/1″ of water to a bare simmer over low to medium-low heat in a wide, flat-bottomed sauté pan.
Weigh the heated phase ingredients into a small heat-resistant glass measuring cup. Place the measuring cup in your prepared water bath to melt everything through.
Regarding the sugar melting: Sugar is water soluble, so it cannot dissolve in the oil base. Its melting point is 186°C (367°F), so it cannot melt in a water bath, where the heat is capped at 100°C (212°F).
While the heated phase melts, prepare an ice bath. Take a bowl that is large enough to accommodate the container the heated phase is melting in, and fill it about halfway with ice cubes and cold water.
Once the heated phase has melted (the sugar, poppyseeds, and mica won’t melt, so they’ll just be sitting at the bottom of the bowl), remove it from the heat and stir for a minute, giving the container a chance to cool a bit. Then place the bowl in the ice bath and stir constantly for about one minute, until the mixture has cooled and thickened. Weigh in the cool down phase ingredients. Stir to combine.
Now it’s time to package the scrub! I used a 30mL (1fl oz) pink tin from YellowBee for 30g (1.06oz) of scrub (I made 15g batches for both the blog and YouTube and put them in the same tin). 15g of scrub will work well in a 15mL (1/2 fl oz) tin, or you can double the as-written formula to make 30g (1.06oz) and use a 30mL (1 fl oz) tin. This scrub is too soft for a twist-up lip balm tube, and I suspect it would clog up the narrow opening on a squeezy lip gloss tube, so I’d recommend sticking with some sort of wide-mouthed tin or jar.
To use, massage a small amount of the scrub into your lips and rinse off the extra with a bit of water. Resist the urge to eat 😝Enjoy!
SHELF LIFE & STORAGE
Because this scrub does not contain any water, it does not require a broad-spectrum preservative (broad spectrum preservatives ward off microbial growth, and microbes require water to live—no water, no microbes!). Be sure to keep it dry to ensure it lasts as long as possible—don’t let any water get into the container and it should easily last a year.
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