Place the basil leaves, olive oil, and honey in a blender, and loosely blend to shred the basil and release their oil. If it is difficult to mix, add one tablespoon of yogurt from the reserved bowl.
Transfer the basil mixture to the reserved bowl containing the yogurt.
Combine everything well with the yogurt until you have a white-greenish concoction.
Spoon the mixture into small ice cube trays (best use a small coffee spoon for this).
Freeze for a couple of hours, and your ice cube facial masks are ready.
How to apply an ice cube facial and yogurt mask
Cleanse your face thoroughly with a gentle and chemical-free face wash, then pat dry with a clean towel.
Take one ice cube facial (you can pick it up using a paper towel with one side left uncovered if too cold).
Start rubbing the uncovered side of the ice cube using small circular motions first on the cheeks. Then, very gently and with little pressure, dab the under-eye area (or try light sweeping strokes) starting from the outer corner inward.
Then gently apply it to your neck with upward strokes.
Proceed to your entire forehead, also using small circular motions.
Repeat this a few times until all is used up and your whole face and neck are sufficiently covered with the white-greenish yogurt mask.
If you have any leftovers, continue to include your chest area.
Let the face mask sit anywhere from 20 to 40 minutes. Note that you might want to lay down or have a towel protecting your clothes—the mask will eventually dry up.
If you have dehydrated skin, your face will absorb most of the mask.
Finally, gently wash off anything left with water, gently pat dry your face, and use your regular moisturizer.