Jul 02, · A: A natural face serum is a lightweight, water or aloe-based skin care product made from blend of plant-based oils, essences, polyphenols, and omega fatty acids. When used regularly, a natural face serum balances the skin, . Feb 27, · Lavender, tea tree, and frankincense essential oils are all effective at diminishing acne and scarring. Basic Homemade Natural Face Serum Recipe. Facial skincare recipes typically use a 1% dilution of essential oil, which .