How to Wash Hair with Aritha (Reetha) Powder: The Soapnut Shampoo Method

The short answer: mix 10–40 g of Aritha powder with comfortably warm water into a thin, pourable wash, let it stand 5–10 minutes and stir again. Wet your hair, massage the wash into your scalp and roots, leave it 3–5 minutes and rinse very thoroughly, keeping it out of your eyes. Up to twice a week is plenty.

Aritha (Reetha) is soapnut powder: the dried fruit of Sapindus mukorossi, whose natural saponins lift oil and residue in water, so it works as a hair wash, though it isn't a bottled shampoo. You can grind dried soapnuts at home, but a kitchen grinder rarely makes a fine, even powder, so the wash comes out grittier; the Aritha page explains the fruit and how the powder is made.

What you need

• Aritha powder: about 10 g for short hair, up to about 40 g for long or thick hair
• Comfortably warm water (never boiling)
• A bowl and a whisk or spoon
• Fine muslin or a fine strainer, if you'd like a smoother, strained wash
• Conditioner, if your lengths usually need it

Before you start

Patch test 24–48 hours before first use: put a little of the wash on a small patch of clean, unbroken skin. Don't go ahead if the skin burns, swells, blisters or turns red, or if it itches and the itch doesn't settle. Wait until a broken or irritated scalp has settled. Keep your first wash simple, Aritha and water only, so you know how your hair responds. If your scalp burns, swells, itches or comes up in a rash while the wash is on, rinse it out and stop using it.

Aritha stings the eyes strongly, so plan for it before you mix: work over a basin or in the shower with your head tilted back, and keep the wash and rinse water away from your face. If any gets in your eyes, rinse them straight away with plenty of clean water and don't rub them.

How do I wash my hair with Aritha (soapnut) powder?

1. Mix. Add warm water to the powder gradually, whisking, until it's smooth and pourable, like thin cream: thinner than a hair mask.
2. Let it stand 5–10 minutes, then stir again. Add a splash of water if it has thickened.
3. Wet your hair and scalp thoroughly. Wet hair spreads the wash evenly and stops concentrated patches.
4. Apply to your scalp and roots first, section by section, massaging gently with your fingertips, not your nails. Smooth only a little through your lengths.
5. Leave it on 3–5 minutes. Don't let it dry on your hair.
6. Rinse very thoroughly, head tilted back, until your hair no longer feels gritty. Check your nape and behind your ears.
7. Condition your lengths if they feel squeaky or tangled.

How do I wash my hair with soapnut water?

Strained soapnut water is the same wash with less grit, handy for curly, coily or very thick hair. Stir the powder into warm water, let it stand 5–10 minutes, whisk well and strain it through muslin or a fine strainer. Pour the liquid over wet scalp and roots, massage briefly, leave it 3–5 minutes and rinse. Make it fresh each time: once water is added it isn't preserved, so throw away any that's left over.

Can I use Aritha powder instead of shampoo?

Yes, if it cleans your scalp comfortably and rinses out well. Plenty of people use it as their only wash; others alternate it with a mild shampoo, especially if they use heavy styling products, have hard water or color-treated hair. It isn't the same as a bottled shampoo: it's mixed fresh, the lather varies and fine powder needs rinsing out.

Is soapnut better than shampoo?

Neither wins for every head of hair or every wash. Aritha gives you a simple, one-ingredient wash you mix yourself; a bottled shampoo gives a predictable formula that copes more easily with heavy styling products. Choose by what your hair needs that week.

Can I use Aritha every day?

No. Use it up to twice a week. Washing more often tends to leave hair squeaky, rough or tangled, and there's nothing to gain from washing more than your scalp needs. Oily, resilient hair may be happy at twice a week; dry or porous lengths often prefer once. On other days, rinse with water or use a little conditioner. The same goes for the Amla, Aritha and Shikakai wash: it's still a cleanser.

Adjusting the wash for your hair

• Dry, curly, porous or bleached hair: less powder, more water, mainly on the scalp, and the shorter end of 3–5 minutes. Let the runoff clean your lengths, then condition.
• Oily roots: the usual strength, focused on your scalp. If it's still oily, do a second short wash rather than leaving the first one on longer.
• After a pre-wash oil: wet your hair and wash the oil out with Aritha; a heavy oil may need that second short wash.
• Colored hair: strong, frequent washing can fade some colors faster, so start with a thinner wash and see how your hair feels over a few washes.
• Blends: 1 tablespoon each of Aritha and one other powder, mixed thin, left 10–15 minutes to stand, massaged in for 60–90 seconds and rinsed after 3–5 minutes, still keeping it out of your eyes. Shikakai makes a gentler wash; Amla, Bhringraj or Brahmi add a care powder; Aloe Vera Powder leaves hair softer without making the wash milder. For dry hair, cut the Aritha before you leave it on longer. Keep Neem out of any wash.

What to expect, and common mistakes

Your roots usually come out clean and light, and your scalp feels fresh. If your hair feels like straw, the wash was too strong or rubbed through dry lengths: dilute it next time and condition. Common slips:

• A thick paste: harder to spread and rinse; thin it with water.
• Chasing foam: more powder doesn't mean a better wash.
• Leaving it longer: 3–5 minutes cleans; longer mostly dries.
• A rushed rinse: leftover powder makes hair feel gritty and dull.

Frequently Asked Questions

How many washes do soap nuts last?

That applies to whole soapnut shells, which can be soaked and used again until they look spent. Powder spreads through the wash and rinses away, so you mix it fresh for each wash.

How do I make Aritha shampoo at home?

Mix Aritha powder with warm water into a thin wash, let it stand 5–10 minutes and use it straight away. It's a fresh wash, not a bottled shampoo, so make only what you need.

Should I use Aritha on wet or dry hair?

On wet hair. Wetting your hair and scalp first helps the wash spread evenly and avoids strong patches.

Can I use conditioner after Aritha?

Yes. Rinse the Aritha out completely, then use your usual conditioner on your lengths. Aritha cleans; it isn't meant to replace your conditioner.

Does Aritha powder need to be strained?

No, but it helps if your hair traps powder easily. Fine sediment is normal, because the powder spreads through the water rather than dissolving.

Can Aritha powder remove oil from hair?

Yes, everyday scalp oil and the oil you put on before washing. For heavier build-up, see clearing oil and product build-up with Aritha.