Reetha vs Shikakai: Which Hair Cleanser Powder Should You Use?

The short answer: reetha is the stronger cleanser, shikakai the gentler one. Choose reetha if your roots get oily or your hair is coated with product, and shikakai for routine washing and for hair that is long, dry or tangles easily. If you can't decide, you don't have to — 1 tablespoon of each makes an established wash of its own.

Neither is better than the other, and neither is a treatment. Both are single-ingredient powders you mix with water yourself, and both clean because of saponins, the plant compounds that make water behave more like a mild wash. Reetha is the dried fruit of Sapindus mukorossi, the soapnut tree; shikakai is the dried fruit of Acacia concinna.

At a glance

The routine is the same shape for both: mix to a thin, pourable wash rather than a paste, let it hydrate, apply to wet hair starting at the scalp, leave it a few minutes, then rinse very thoroughly. Rinsing is the step people cut short, and it decides whether hair feels clean or gritty afterwards.

Choose reetha if…

Your roots get oily within a day or two, your hair carries styling product, or you want an occasional reset rather than a weekly wash. Reetha is the more forceful of the two, and that's the whole reason to own it.

Use about 10 g for short hair and up to about 40 g for long or thick hair, mixed with warm water to a thin, pourable wash. Hydrate 5 to 10 minutes and stir again, then work it into wet scalp and roots with your fingertips, smoothing only a little through the lengths. Leave 3 to 5 minutes, then rinse until nothing feels gritty, up to twice a week. Take the eye sting seriously: the rinse water stings as much as the wash, so tip your head back rather than forward. The clearing wash guide covers the build-up routine, and the full method is here.

Choose shikakai if…

You want a wash you can use regularly, or your hair is long, dry, curly, coloured or prone to tangling. Shikakai cleans with less of an edge, which makes it the easier one to build a routine around.

Use 10 to 15 g for short hair, 20 to 25 g for shoulder length, or about 30 g or more for very long or thick hair. Mix to a thin pourable wash, hydrate 5 to 10 minutes and stir again, apply to wet hair at the scalp and massage gently for 60 to 90 seconds. Leave 3 to 5 minutes, rinse thoroughly, and condition the lengths if needed — up to twice a week, though once is plenty if your hair is dry. Coming from ordinary shampoo, what the first few washes are really like is worth reading first, and the full method is here.

Using them together

This is one of the most common ways to use either of them, and there's a set recipe rather than guesswork. Reetha does the cleansing and shikakai takes the edge off it.

1. Mix 1 tablespoon of each in a non-metallic bowl for medium-length hair, adding warm water gradually to a thin, pourable wash.
2. Hydrate 10 to 15 minutes — longer than either powder alone — then stir again.
3. Apply to wet hair and scalp, starting at the roots.
4. Massage gently for 60 to 90 seconds, then smooth the rest through the lengths.
5. Leave on for 3 to 5 minutes, then rinse very thoroughly, keeping it away from your eyes. Condition if needed.

If your hair is dry, porous or curly, dilute the wash more and reduce the reetha proportion rather than shortening the contact time. If your roots are oily, keep the wash at the scalp; if one wash doesn't shift enough oil, a second brief wash beats leaving the first on longer.

You can widen it with amla: 1 tablespoon each of amla, reetha and shikakai, with bhringraj as an optional fourth, on the four-powder wash page.

Which to buy first

Start with shikakai for a routine wash, or if your hair is dry, long, curly or coloured; start with reetha if your scalp is oily or you want an occasional deep clean. Give it two or three washes before you judge it — reetha side effects and shikakai and dry hair cover what usually needs changing.

Frequently Asked Questions

Are shikakai and soapnut the same?

No. Soapnut is reetha, or aritha, from Sapindus mukorossi. Shikakai is Acacia concinna. They're used together often enough that the names get muddled, but they're different plants.

Is reetha the same as aritha?

Yes. Two regional names for the same fruit, and soapberry is a third. The pack should name Sapindus mukorossi whichever word is on the front.

Does reetha foam more than shikakai?

Usually a little, but not reliably. Both give a light foam at best, and how much you see depends on how strong the mix is, your water, how oily the hair was and how much you work it. Foam isn't a measure of whether hair is clean.

Can I use them on coloured hair?

Many people do. Any effective cleanser can speed the fading of some colour products, so use a more dilute wash, keep to the 3 to 5 minutes, leave more time between washes, and start with shikakai rather than reetha.

Do I still need conditioner?

On the lengths, usually yes. Neither powder is a conditioner, and a botanical wash doesn't oblige you to drop the rest of your routine. Aloe Vera Powder is the one in the range that adds slip if you'd rather keep it plant-based.

Which one helps a flaky, itchy scalp?

Washing regularly and rinsing well helps a scalp feel more comfortable, and shikakai is the easier one to do that with often. Neither is aimed at flaking specifically — neem is the clarifying scalp powder in the range, used as a mask before you wash rather than in the wash. If flaking is heavy or the scalp is sore, that's worth getting looked at.

Which is cheaper per wash?

Whichever you dilute more. Shikakai uses a little more powder per wash for the same length of hair, but most people use reetha less often, so the two land in much the same place. Cost per wash is set by how strongly you mix.