How To Use Cassia Obovata Powder to Make Different Hair Dye Colours

Cassia obovata, often referred to as “neutral henna,” is a conditioning plant powder traditionally used to strengthen and revitalise hair without dramatically changing its colour.

Cassia belongs to the Fabaceae (legume/pea) plant family and does not contain the same dye molecule, Lawsone, like henna. Instead, its colouring potential comes from a mild yellow pigment called chrysophanic acid, which produces soft golden tones on light-coloured hair and is also an effective hair conditioning treatment.

Cassia creates golden tones on light hair, adds brighter golden tones to medium browns, and helps mute the red tones of darker shades. It has also been used for centuries in Ayurveda as a conditioning hair mask.

Cassia is rich in natural plant compounds that bind lightly to the outer layers of the hair shaft, creating a translucent coating that enhances shine, smoothness, and body. This makes cassia a great option for anyone seeking natural hair strengthening and scalp treatments.

Much like henna, cassia interacts with keratin in the hair, though its bond is weaker and more temporary. It is less permanent than henna and can be considered a semi-permanent dye. It works best in a slightly acidic environment, which helps release its conditioning and colouring compounds gently and evenly. A small dash of lemon juice for blondes or a mildly acidic herbal tea is always a nice option.

Cassia can be developed alone or together with henna, seeing as they both like a mildly acidic pH liquid to develop in. But it is not advised to mix cassia powder with indigo powder; you would need to combine them in their developed paste forms.

Cassia is widely used in blends for blonde shades, imparting a wheat/golden tone on white/grey or a golden blonde on light-coloured hair. When combined with henna, you can achieve anything from a lighter, strawberry blonde to a lighter copper tone, depending on your ratios. When combined with both henna and indigo, you can neutralise the redder tones of henna and the brown impact of indigo to create a more golden and softer brown shade.

Nourishing Hair Mask - Cassia has long been valued in traditional hair care for its anti-fungal, scalp-soothing, conditioning, and hair-strengthening qualities. Regular use can help improve hair texture, reduce breakage, and increase natural shine. When preparing cassia powder to use as a nourishing hair mask, there is no need to develop the paste or add any acidic component to activate the dye molecule. You can simply add warm water and apply the paste all over the hair as you would any mask. Leave it on for 60 mins and wash out with just water, you don’t need to use shampoo or conditioner.