✦ Reliable lipophilic emulsifier that creates stable water-in-oil emulsions for rich creams and balms
✦ Low HLB value of 4.3 makes it ideal for heavy, protective formulations that lock in moisture
✦ Works synergistically with Tween 80 to build finely tuned HLB-balanced emulsion systems
✦ Effective pigment wetting and dispersing agent in color cosmetics and mineral sunscreens
✦ Compatible with a broad range of cosmetic oils, waxes, butters, and silicones
✦ Nonionic surfactant with low irritation potential suitable for sensitive and facial formulations
✦ Derived from plant-based sorbitol and oleic acid, making it suitable for naturally derived product claims

Span 80, chemically known as Sorbitan Monooleate, is a nonionic lipophilic emulsifier produced by esterifying sorbitol with oleic acid. It has been a foundational ingredient in cosmetic and pharmaceutical emulsion science for decades, valued for its ability to stabilize water-in-oil systems. Its consistent performance and well-documented safety profile have made it a staple in formulation laboratories worldwide.

What makes Span 80 particularly valuable is its low HLB value of approximately 4.3, which positions it as the primary emulsifier for W/O creams, ointments, and protective barriers. When combined with a hydrophilic partner such as Tween 80, formulators can achieve any target HLB across the full spectrum, enabling precise control over emulsion texture, stability, and skin feel. Span 80 also excels at wetting and dispersing hydrophobic pigments, making it essential in mineral sunscreen and color cosmetic production.

Bio Shop Pakistan supplies cosmetic-grade Span 80 suitable for DIY beauty crafters, soap makers, cosmetic students, and professional formulators.

INCI Name : Sorbitan Oleate
Chemical Name : Sorbitan Monooleate
CAS Number : 1338-43-8
Molecular Formula : C24H44O6
Appearance : Amber to brown viscous oily liquid
Odor : Mild, faint fatty odor
pH (1% solution) : Not Applicable (oil-soluble, nonionic)
Solubility : Soluble in oils, mineral oil, and most organic solvents; insoluble in water
Specific Gravity : 0.986 to 1.010 at 25°C
Flash Point : Approximately 205°C
HLB Value : 4.3
Recommended Use Level : 1% to 10% depending on emulsion type and co-emulsifier pairing
Type : Nonionic lipophilic emulsifier and dispersing agent
Shelf Life : 24 months when stored properly in sealed containers

Skincare (Creams, Serums, Lotions)
★★★★★
Span 80 is the primary emulsifier for water-in-oil facial and body creams that need a rich, protective feel. Use at 3% to 6% in the oil phase and pair with Tween 80 to fine-tune your target HLB.
Haircare (Shampoo, Conditioner, Masks)
★★☆☆☆
Span 80 has limited application in rinse-off haircare due to its oil-soluble nature. It can be used in pre-shampoo oil treatments or oil-based hair masks at 1% to 3% to improve ingredient dispersion.
Soap Making (Cold Process, Melt and Pour)
★☆☆☆☆
Span 80 is not a standard soap-making ingredient as it does not saponify effectively. It may be added to syndet bars or liquid soap bases at low levels as an auxiliary emulsifier but is not recommended for traditional soap.
Body Care (Scrubs, Butters, Balms)
★★★★☆
Excellent for anhydrous and W/O body balms where a protective, occlusive barrier is desired. Use at 2% to 5% to help disperse any aqueous or humectant micro-phase evenly within the oil base.
Color Cosmetics (Foundations, Sunscreens, Pigment Dispersions)
★★★★★
Span 80 is outstanding at wetting and dispersing mineral pigments such as zinc oxide and titanium dioxide. Use at 2% to 6% in mineral sunscreen and foundation formulations for uniform pigment distribution.

In my formulation work, I never use Span 80 alone for an emulsion. Its real power emerges when you pair it with Tween 80 in a calculated Span-Tween blend to hit a precise required HLB for your oil phase. For example, if your oil phase requires an HLB of 10, you blend Span 80 (HLB 4.3) and Tween 80 (HLB 15) in the right ratio. This co-emulsifier approach delivers far more stable and elegant emulsions than any single emulsifier can achieve. Mastering HLB calculations with Span-Tween pairs is one of the most valuable skills a cosmetic formulator can develop.

ADVANCED TIP: To determine the Span 80 to Tween 80 ratio for a target HLB, use the formula: % Span 80 = 100 x (HLB of Tween 80 minus Required HLB) divided by (HLB of Tween 80 minus HLB of Span 80). For instance, targeting HLB 10 requires approximately 47% Span 80 and 53% Tween 80 within your total emulsifier blend, which itself should be 4% to 8% of the total formulation weight.

Normal Skin : ★★★★★ — Performs excellently in balanced W/O creams without over-greasing or drying the skin.
Dry Skin : ★★★★★ — Creates occlusive barriers that lock in moisture, making it ideal for rich dry-skin formulations.
Oily Skin : ★★☆☆☆ — W/O emulsions may feel too heavy for oily skin types and can contribute to a greasy finish.
Combination : ★★★☆☆ — Suitable for targeted application on dry zones but may be excessive for oily areas.
Sensitive Skin : ★★★★☆ — Nonionic and low-irritation profile makes it gentle, though patch testing is always advised.
Mature Skin : ★★★★★ — Excellent for anti-aging night creams and barrier-repair formulations that mature skin benefits from.
Acne-Prone : ★★☆☆☆ — The oleate ester may be mildly comedogenic for acne-prone individuals; use cautiously and at lower levels.

CONCEPT 1: Protective Cold Cream
Usage Level : 5%
Key Ingredients: Beeswax, Mineral Oil, Tween 80, Glycerin
Result : A classic W/O cold cream with a rich, protective texture that deeply moisturizes and shields skin from harsh weather.

CONCEPT 2: Mineral Sunscreen SPF 30
Usage Level : 4%
Key Ingredients: Zinc Oxide 20%, Tween 80, Caprylic/Capric Triglyceride, Vitamin E
Result : A smooth, non-chalky mineral sunscreen with evenly dispersed zinc oxide for uniform broad-spectrum UV protection.

CONCEPT 3: Intensive Night Repair Balm
Usage Level : 3%
Key Ingredients: Shea Butter, Rosehip Oil, Tween 80, Allantoin
Result : A luxurious overnight W/O balm that delivers concentrated actives under an occlusive moisture-sealing layer for visibly repaired skin by morning.

INCI Declared : Yes — required when present at any functional level
EU Cosmetics Reg : Permitted — no specific restriction under EU Cosmetics Regulation 1223/2009
Rinse-Off Limit : No specific limit established; follow good manufacturing practice
Leave-On Limit : No specific limit established; typically used at 1% to 10%
Allergen Alert : No — not a listed allergen, though oleate esters may cause mild sensitivity in rare cases
Skin Safety : Safe at recommended levels
Eye Area Use : Use with caution — may cause mild irritation in direct eye contact
Ingestion : Not for internal use
Pregnancy Use : Safe at standard cosmetic use levels
Child Safety : Safe for use in children's products at standard levels
Ventilation : Not required under normal handling conditions
Storage : Cool dry place, away from direct sunlight and heat sources
Container : HDPE or PET recommended; glass also acceptable

⚠️ Oleate esters may have mild comedogenic potential. Formulators targeting acne-prone consumers should conduct comedogenicity assessments and consider limiting concentration.

Working pH Range : 3.0 to 10.0 (stable across a wide pH range as a nonionic emulsifier)
Heat Stability : Stable up to approximately 80°C; can be incorporated into the oil phase during hot processing
Freeze-Thaw Stable : No — W/O emulsions made with Span 80 should be freeze-thaw tested as separation may occur
Emulsion Type : W/O (primary); O/W when blended with high-HLB co-emulsifiers
Emulsification Phase: Hot phase — add to the oil phase and heat with oils before combining with the aqueous phase
Compatible With : Mineral oils, vegetable oils, silicones, waxes, Tween-series emulsifiers
Incompatible With : Strong oxidizing agents; highly acidic systems below pH 2 may cause ester hydrolysis over time
Oxidation Risk : Medium — oleate chain is susceptible to oxidation; add 0.05% to 0.1% Vitamin E or BHT as antioxidant
Discoloration Risk : Possible — may darken slightly over extended storage or when exposed to heat and light
Formulation Notes : Always melt Span 80 into the oil phase at processing temperature before adding the aqueous phase. For maximum emulsion stability, use a Span-Tween blend calculated to the required HLB of your oil phase rather than using Span 80 alone.

Q: What is Span 80 and what does it do in cosmetics?
A: Span 80 is a nonionic lipophilic emulsifier chemically known as Sorbitan Monooleate. It stabilizes water-in-oil emulsions, allowing water and oil to stay mixed in products like creams, balms, and sunscreens.

Q: Can I use Span 80 alone to make a cream?
A: You can, but results will be far better when you pair it with a hydrophilic emulsifier like Tween 80. Using a calculated Span-Tween blend gives you a stable, elegant emulsion matched precisely to your oil phase's required HLB.

Q: How do I calculate the right Span 80 to Tween 80 ratio?
A: Determine the required HLB of your oil phase, then use the HLB blending equation to find the percentage of each emulsifier needed. For example, an oil phase requiring HLB 10 needs roughly a 47:53 ratio of Span 80 to Tween 80 within your emulsifier blend.

Q: Is Span 80 safe for facial products?
A: Yes, it is nonionic and generally well tolerated on facial skin. However, because it contains an oleate ester, it may be mildly comedogenic for acne-prone users, so patch testing and concentration awareness are recommended for facial formulations.

Q: How does Span 80 compare to Span 60?
A: Span 80 (HLB 4.3) is liquid and contains an unsaturated oleate chain, making it better for fluid W/O emulsions and pigment dispersions. Span 60 (HLB 4.7) is a solid waxy material with a saturated stearate chain, making it better for thicker, more structured creams and ointments with improved oxidative stability.