T-Tree By Parnevu No-Lye Conditioning Relaxer System #RegularPARNEVU T-Tree Relaxer – Regular strength (also available in Super strength) straightens better while eliminating dry flaking and relieves itching while leaving scalp and hair moist. Experience the benefits of combining T-Tree conditioning research with the latest in relaxer system technology. The PARNEVU system straightens hair and keeps it straight longer by conditioning throughout the entire relaxing process. Greater penetration of conditioning agents during each step of the application helps restore and rebuild your hair leaving it straighter, softer, shinier, and full of body.