The invention discloses a cleanser essence, which is mainly composed of, by mass, 15-20% of a main surfactant, 0.1-5% of a thickening and foam-stabilizing agent, 0-4% of inorganic salt, 0.05-0.55% of a preservative, 0-0.3% of an essence, and water added to 100%. The main surfactant at least includes isopropyl amine linear-alkyl benzene sulphonate, and fatty alcohol-polyoxyethylene ether sodium sulfate and/or alpha-alkenyl sodium sulfate. The cleanser essence is easy to thicken, has strong cleaning performance and is low in cost.