Use the blending binder to tone down stronger blending oils before mixing with other lighter note blending oils. 

Fresh, herbaceous and slightly camphoraceous, Basil Essential Oil is a top note that blends well with citrus essential oils and woodsy essential oils.

Lime Essential Oil is a pale yellow or olive green liquid with a fresh, sweet, citrus peel odour.
Blending Suggestions: Orange, Citronella, Lavender, Lavandin, Rosemary, Clary Sage, Citrus Oils.

Geranium Essential Oil is a pale yellow to greenish yellow liquid with a rosy floral scent.
Blending Suggestions: Lavender, Patchouli, Clove, Rose, Sandalwood, Jasmine, Neroli, Bergamot and other Citrus Oils.

When dissolved in a bath, Epsom Salt is absorbed through the skin to replenish the body's levels of magnesium.

Camphor Essential Oil is a colourless to pale yellow liquid with a strong, sharp, penetrating camphoraceous odour.
Blending Suggestions: Basil, Cajeput, Lavender, Rosemary, and Chamomile.

Activated Charcoal can be used to obtain a light grey to a pure black colour in natural soap. It's often used as a general detoxifier.

Palmarosa Essential Oil is a pale yellow or olive liquid with a sweet, floral, rosy, germanium-like scent.
Blending Suggestions: Cedarwood, Rosewood, Oakmoss, Sandalwood, Cananga, Geranium and floral oils.

Anise Essential Oil is a pale yellow liquid with a warm, spicy, sweet, licorice like scent.
Blending Suggestions: Rose, Lavender, Lavandin, Orange, Pine, Clove.

Tangerine Essential Oil is golden yellow-orange liquid. It has a refreshing, sweet, orange like aroma.
Blending Suggestions: Lemon, Grapefruit, Orange, Cinnamon, Clove.