lush hard water shampoo

Does anyone know of a natural shampoo that works in hard water?

I've been using all natural castile soap as a shampoo for about six months, but recently moved to London and found to not work at all. With a little research, I discovered that London is a very difficult area of water and minerals in the water (calcium, magnesium) that is more difficult to rinse natural soaps, leaving behind a residue. I installed a shower filter, but only removes the chlorine and minerals not hard. I never want to shampoo, as they contain a large amount of chemicals and left my hair dry, but may have to if I can find a good shampoo. LUSH I know that hard water makes a "natural" shampoo bar, but it contains some of the same chemicals that are supposed to be bad for you. Has anyone used an SLS-free shampoo like Aubrey Organics, Burt Bees or Neal's Yard who works in hard water areas?

k try Pantene brand

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NEW! Solid Shampoo by LUSH Sale Price: $9.95   Eligible for free shipping! Availability: Usually ships in 3-4 business days See Reviews For This Product Description This isn't our newest shampoo bar, we call it New because it's full of stimulating essential oils to encourage healthy hair growth. We put in refreshing peppermint and cinnamon infusions for a healthy scalp and stimulating rosemary and nettle absolutes for shine. If you're losing your mane because of hormones or age, you could go out and buy a new toupee, but first try New shampoo and see if it doesn't do the trick. Use it with The Hair Doctor for a major scalp stimulating experience. Features Perfect for new moms and people suffering from stress in general! Effective, economical, convenient. Great for travel