(TrendHunter.com) OPI Nature Strong is the nail polish brand's first natural origin vegan nail lacquer and it shares neutral earth tones and pops of color derived from sugar cane, wheat, potatoes and corn.... (TrendHunter.com) OPI Nature Strong is the nail polish brand's first natural origin vegan nail lacquer and it shares neutral earth tones and pops of color derived from sugar cane, wheat, potatoes and corn....