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ICTASOL.

Valuable CAS 1340-06-3 / ANTI-SEBORRHEIC, ANTIMICROBIAL

ICTASOL, also known as Ammonium Bituminosulfonate, is a multi-functional active ingredient prized for its comprehensive approach to improving skin health. It effectively modulates sebum production, calms inflammatory responses, and inhibits bacterial proliferation, leading to visibly clearer, less irritated skin, particularly beneficial for blemish-prone and sensitive complexions.

anti-inflammatory antimicrobial/antibacterial anti-seborrheic reduces redness relieves itching promotes wound healing inhibits excessive keratinization

Science

ICTASOL exerts its effects through anti-seborrheic, antimicrobial, and anti-inflammatory actions. It reduces excessive sebum secretion, inhibits the growth of skin bacteria such as Propionibacterium acnes, and significantly mitigates inflammation by impairing the formation of inflammatory mediators like LTB4 via 5-lipoxygenase inhibition. Additionally, it helps to alleviate itching, prevent excessive cell division and keratinization, and promotes wound healing.


Research

High confidence
Effective range 0.5–5%
Optimal

1%

Key findings

  1. 01 Demonstrated significant improvement in acne-prone skin, with a 94% enhancement in overall appearance and an 80% reduction in pimple count over a six-week treatment period. Efficacy was rated 'good' or 'very good' in over 75% of cases for skin blemishes.
  2. 02 Achieved an 80% reduction in the average number of visible skin changes during an eight-week treatment phase, highlighting synergistic potential.
  3. 03 Exhibited a Minimum Inhibitory Concentration (MIC) against Propionibacterium acnes, underscoring its potent antimicrobial activity at low concentrations against acne-contributing bacteria.
  4. 04 Showcased anti-inflammatory efficacy in a UVB erythema test, comparable to a 2% concentration and a reference product containing 0.5% hydrocortisone.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH N/A
0 7 14

Stability

ICTASOL is chemically stable under standard ambient conditions and maintains stability across a wide pH range. However, exposure to strong acids, higher valency cations, or additional salts may lead to precipitation. A 10% aqueous solution typically exhibits a pH between 6.5 and 7.5. It possesses a shelf life of at least 48 months when stored in closed, well-filled containers.

Synergies

  • Salicylic Acid (enhances efficacy in treating blemishes)

Conflicts

  • Strong acids (may cause precipitation)
  • Cations of higher valency and additional salts (may cause precipitation)
  • Oils without an emulsifier (miscibility generally not possible)
  • Topical corticosteroids (potential for physical instability and phase separation)
  • Topical retinoids (potential for chemical degradation, requiring antioxidants and light-protective packaging)

Safety

CIR Status
Not reviewed
Max tested
20%
Sensitization risk Low

ICTASOL (Ammonium Bituminosulfonate) is recognized for its high purity and excellent safety profile, making it a suitable ingredient for personal care products. It has demonstrated good tolerability in numerous toxicological studies. This ingredient is a pure and gentle alternative to coal tar, with extremely low levels of PAHs (less than 0.001 ppm benzo[a]pyrene), unlike coal tar which is often contaminated and linked to mutagenicity and carcinogenicity. It is widely used in over-the-counter (OTC) products, with recommended cosmetic concentrations typically ranging from 0.5-5%, and up to 20% in medicinal ointments.


Your Skin

Yes Normal
No Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

ICTASOL is a valuable, evidence-backed ingredient that effectively addresses multiple challenging skin conditions—including acne, inflammation, and excessive sebum—with an impressive safety and tolerability profile.


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