Ensure a deep dark tan, Moisturizing your skin with dark Tanning oil made from mineral oil; Alcohol free.
不含酒精，含丰富矿物油，令你拥有一身古铜色肌肤同时滋润肌肤，免受伤害。
2
The bonding theory explains the difference of hydrothermal stability of leathers tanned by various mineral-tanning agents according to their bond strength to collagen.