I have developed an awesome DIY hydrating lavender and rose water toner that you are. Tea tree essential oil is great for helping reduce acne and scarring.
To make rose oil: Bring a few inches of water to a boil in a saucepan, then remove from heat. Pour a cup or so of oil in a glass jar. Crush, shred or "bruise" a cup of rose petals and place in the oil. Cover the jar and place into the hot water. Leave the jar alone in the warm area for at least 24 hours.