Fueled by X-treme Tanning Catalyst (XTC), this advanced high performance, high output Step 1 bronzing product unleashes fast-acting bronzers and speeds color into pure tanning Ecstasy. • X-treme Tanning Catalyst, better known as XTC, creates a synergistic fusion of energy, vitamins, proteins and oxygen, encouraging skin to perform at its optimal efficiency. • VITATAN 2000 provides nutrients and energy for faster base tan development. • Advanced Bronzing Technology delivers unsurpassed bronzing color in 2-3 hours for fast, high-output results.