Nautica Black Iron Oxide SoapBundle3 provided it is used at

provided it is used at an appropriate dilution

or customise with essential oils

mint oils can easily dominate a blend

Casual use without care or formulation knowledge

Nautica Black Iron Oxide SoapBundle3 provided it is used atNautica Black Iron Oxide is a cosmetic grade black mineral colourant used to add deep, earthy tones to a wide range of DIY and formulated products. Unlike brighter pigments or dyes, iron oxides create more muted, natural looking shades, which makes them especially useful in products where a grounded colour palette is preferred. This black oxide can be used on its own or blended with other iron oxides to create custom tones, and titanium dioxide can be