These wonderful bars are easy to pack & carry and they are natural & safe to the environment. All the bars contain Castor Oil and Extra Olive Oil for added sheen, giving body and resilience to the hair. We've also added powdered slippery Elm for encouraging hair growth, let us know if it helps!.... Anyway, agitate the bar directly on your scalp and scrub up lots of sudsy lather and wash away! Your hair will feel clean like never before, rid of wax and residue build-up, that contributes to self-made dandruff. Let your scalp and hair breathe again! Clean and natural! Each bar weighs a guaranteed 135g, but usually weigh in at 140-145g.