With this type of usage, you want to look for capsules or gel caps, which I've conveniently linked for you below with the best prices I was able to find. Tablet supplements won't mix properly and are ineffective for this purpose. With any type of Do-It-Yourself skincare, adding additional ingredients to another group of ingredients (preserved or not) means it’s no longer preserved properly. As always, mix a single-use batch and use it immediately.
Grape Seed Extract: Not to be confused with grapefruit seed extract, Grape Seed Extract is essentially the seeds of grapes, concentrated in gritty powder form for internal usage. This gives a great antioxidant boost to your skin, which makes it great for all skintypes. Leaves my skin feeling ultra-smooth and somehow stronger against the environment.
Green Tea Extract: Another great antioxidant supplement. This may also have a skin toning and firming effect due to the natural-occuring caffeine in green tea. Smells amazing when mixed with the yogurt mask (like green tea ice cream!) If you are sensitive to caffeine, this would be more suitable during morning masks. Great for oily skintypes.
Olive Leaf Extract: I take Olive Leaf Extract internally and also use it topically so it totally made sense for me to break open one of my olive leaf extract capsules and apply it to my skin. Another great antioxidant and this will be great for acne-prone skin types. Olive Leaf Extract+Yogurt = best mask for completely broken-out skin that has ruptured pimples and has been abused by acne products.
Activated Charcoal: Yes indeed, food-grade charcoal comes in capsule forms to be taken internally! Activated Charcoal is a great toxin absorber and would work well mixed in a clay mask or yogurt mask for extremely oily and acne-prone skin. Keep in mind it’s extremely concentrated. Use just a little bit to avoid black residue (it cleanses off easily with a cleanser in case you are left with black residue). This is also extremely potent.
Flax Seed Oil: As the name implies, it’s an oil. I take Flax Seed Oil daily and it comes in a seamless liquid capsule. This would be wonderful for drier skintypes and may help shield skin from UV rays. Some people do this with vitamin E oil but I prefer flax seed.
Once you make you selection from the supplements above, you’re ready to customize your mask!
Place a dollop of your mask in the palm of your hand. Open the capsule by pulling the 2 ends of capsule apart. Pour the entire or half of the content on top of the mask dollop, mix with your finger and apply to face. For liquid/softgel capsules (like flax seed oil), pierce one end of the capsule with a clean needle several times and pour content on top of the mask dollop. Proceed accordingly. As always, do a patch test on your cheek or neck to test your skin’s sensitivity and never use any ingredients on your face if you suspect that you may be allergic to those ingredients.