Bringing you the MSM’s skin lightening and brightening properties, Charcoal Diamond: Whitening Soap Bar gives your skin a healthy brighter tone. Activated carbon or charcoal is also known to brighten up the skin. MSM Charcoal Diamond: Whitening Soap Bar thus combines skin brightening properties of both MSM and activated carbon. Tone up your skin a tad brighter with MSM Charcoal Diamond: Whitening Soap Bar!