LUBRIPHARM® SSF Sodium Stearyl Fumarate (SSF) is an inert, less hydrophobic alternative to magnesium stearate as a pharmaceutical tablet lubricant. Tablets made with Lubripharm SSF exhibit less sensitivity to variations in blending time and lubricant levels and have functionally superior hardness characteristics compared to tablets produced with magnesium stearate. In addition, Lubripharm SSF does not exhibit incompatibility with active pharmaceutical ingredients (APIs) that are susceptible to oxidation or degradation in alkaline conditions or contain primary amines.Lubripharm® SSF is manufactured from natural and synthetic sources; no animal products are used.