Charmin, Angel Soft, Coleman and Scott Rapid Dissolving Toilet Paper are safe to use with a septic system. Camco, Green Forest and Seventh Generation are other brands of toilet paper safe to use in a septic system.
Angel Soft, Green Forest and Seventh Generation toilet papers are all made from 100 percent recycled materials and are safe for septic systems. Coleman toilet paper dissolves quickly, is free of perfumes and dyes, and available online (but hard to find in stores). Scott Rapid Dissolving Toilet Paper dissolves quickly and is one-ply to prevent clogs. Charmin is single-ply and free of perfumes, dyes and inks. Camco is two-ply, dissolves quickly and does not clog.