The amount of oil to sugar depends on the consistence you want. For sensitive skin I recommend 1/2 oil to 1/2 sugar. Vegetable Glycerin is a nice addition. Just include that in your oil phase. Little fragrance goes a long way. I would start with 2-3 drops of essential oil. Citrus scents may cause skin sensitivity when exposed to the sun. Always test for allergies.
Sunflower oil -This is a light oil that is great for acne prone skin & won't clog pores but has a short shelf life of 3-6 months.
Sweet Almond oil -This is a light oil known for anti-inflammatory benefits with a long shelf life.
Grapeseed oil -This is a light oil that is great for itchy skin but has an extremely short shelf life.
Jojoba oil- This is a wax ester that sinks into our skin, mixes with our own sebum and does not block pores. Its great for troubled skin. It has a long shelf life of two years.
Avocado oil -This is a medium oil that is great for sun/wind damaged skin and has about a year shelf life.
Sesame oil -This is a medium oil that is great for acne prone skin, won't stain and has about a 9-12 month shelf life.
Olive Oil -This is a medium to heavy oil that softens skin and has about a year shelf life.
Plastic packaging is best for shower use. Last thing we want is broken glass in the shower. The oil can be slippery on your fingers. Use glass with precaution. Always use new containers to eliminate cross contamination. I strongly suggest a preservative since water can easily be introduce to the container during application.