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About SIG-1191™


SIG-1191 is our 3rd generation isoprenylcysteine (IPC) cosmetic functional ingredient (CFI). Similar to 1st and 2nd generation CFIs Arazine and SIG-1273, SIG-1191 has anti-inflammatory properties. However, through additional screening and R&D, SIG-1191 also possesses unique skin hydration potential by modulating the expression and production of water channels in basal keratinocytes. Moreover, SIG-1191 has anti-aging properties. At the cellular level, SIG-1191 has to the ability to inhibit the production of pro-inflammatory cytokines and reduce the oxidative damage associated with chronic inflammation and stress. SIG-1191 has been clinically proven to be safe and is currently being assessed for skin benefitting activity in vivo.


  1. Skin hydrating properties
    • Increases dose dependently the expression of Aquaporin-3 (AQP-3). AQP-3 is part of the aquaporin family of transmembrane proteins forming water channels in the basal layer of the epidermis and is responsible for water transport and hydration in the human skin epidermis
  2. Anti-aging properties
    • Protects against fibroblast cellular senescence
    • Possesses antioxidant properties
    • Reduces the oxidative damage
  3. Anti-inflammatory properties
    • Protects against chemical induced pro-inflammatory cytokine release
    • Protects against UV induced pro-inflammatory cytokine release
  4. Blocks neutrophil infiltration

INCI Name and Chemical Structure

Sodium Acetylglutaminoyl Farnesylcysteine


Publications / Presentations

  1. SIG-1191: A novel cosmetic functional ingredient with anti-inflammatory properties and skin hydrating potential
    Fernandéz JR, Rouzard K, Voronkov M, Huber KL, Webb C, Stock JB, Stock M, Gordon JS, Pérez E. Society for Investigative Dermatology. Poster presentation.
  2. SIG-1191TM: A novel hydrating cosmetic functional ingredient (CFI) for suborbital hyperpigmentation (under eye dark circles) José R. Fernández, Karl Rouzard, Michael Voronkov, Jason Healy, Kristen L. Huber, Corey Webb, Jeffry B. Stock, Maxwell Stock, Joel S. Gordon, Eduardo Pérez. Society for Investigative Dermatology, Scottsdale, Arizona 2016. Poster presentation
  3. N-Acetylglutaminoyl-S-Farnesyl-L-cysteine (SIG-1191): an anti-inflammatory molecule that increases the expression of the aquaglyceroporin, aquaporin-3, in human keratinocytes
    José R. Fernández, Corey Webb, Karl Rouzard, Michael Voronkov, Kristen L. Huber, Jeffry B. Stock, Maxwell Stock, Joel S. Gordon, Eduardo Pérez. Arch Dermatol Res (2016)