Rheomer® SC Plus: SPF booster for daily wear skin care

 

Rheology & emulsification agent for skin care and cosmetic formulations

Rheomer® SC Plus is a patented liquid polymer with elevated rheology and emulsification benefits that also delivers excellent SPF boosting when formulated with organic or a combination of organic and inorganic UV filters. In-vivo studies show that the use of Rheomer® SC Plus increases  SPF by as much as 2.5 times the estimated SPF value, thus enabling the formulation of high SPF products with a lower dosage of sunscreens.
 

What are today’s consumer trends?

  • Increased awareness of sun damage leading to rising demand for SPF protection  
  • Need for a versatile sun protection solution that can be incorporated into daily skin care products such as morning moisturizing cream, makeup foundation
  • Deeper understanding of the long term benefits of sun protection for slowing down the signs of aging
  • Greater peace of mind by using less controversial ingredients and choosing eco-friendly and ocean-safe solutions

”Rheomer® SC Plus is a patented liquid polymer providing unique SPF boosting properties” 

Marie Arzel
Business Development Manager, Home & Personal Care at Solvay

What Are The Main Attributes of Rheomer® SC Plus?

Rheomer® SC Plus is excellent for use in sun care products containing organic UV filters (oil and water soluble) and combination organic and inorganic UV filters.

It is also ideal for multi-functional or multi-benefit skin care products containing particulates (e.g. pigments) and electrolytes, such as BB or CC creams, daily wear products with UV protection and skin care benefits and low viscosity o/w formulations like milks or sprays for body, skin and sun care.

  • SPF boosting of up to 155%
  • excellent suspension ability as it stabilizes o/w systems containing particles
  • outstanding emulsification and thickening in o/w emulsions
  • good electrolyte tolerance as it stabilizes high electrolyte containing o/w formulations
  • improved sensory benefits such as a smooth, non-tacky feel after dry down
  • supplied in liquid form for ease of use during processing
  • cold-processable, which saves energy during processing
  • answer to the growing concern over ingredient safety thanks to the boosting effects of Rheomer® C Plus.

 

Boosts the SPF of Suncare Formulations 

Rheomer® SC-Plus demonstrates excellent SPF boosting performance. This polymer works exceptionally well in formulations containing oil-soluble and water-soluble chemical UV filters, where it also functions as the only emulsifier and emulsion stabilizer required. However, in systems containing chemical and physical UV filters, it is recommended to include a traditional emulsifier in addition to Rheomer® SC-Plus for optimum stability and performance.

Not all Acrylates/Beheneth-25 Methacrylate Copolymers perform the same : the unique structure of Rheomer® SC Plus , based on proprietary associative monomers, gives it a distinctive level of boosting performance in sun care formulations that is far superior to any other Acrylates/Beheneth-25 Methacrylate Copolymer. 

Rheomer Sc Plus Solvay - SunProtection-SPF

 

A Unique Sensory Experience 

During the rub-out phase, testers found that the Rheomer® SC Plus formulation was absorbed faster.  In terms of after feel, testers found the formula with Rheomer® SC Plus to be significantly less tacky and left less residue on the skin. The formula with Rheomer® SC Plus was also rated as giving more gloss to skin. (Figure 4)

15 consumers participated in a blind test about the sensory attributes of an SPF 50 product containing  Rheomer® SC Plus  (Formulation SC-16-065, available above in figure 1, SPF + 46) vs a conventional SPF 50 product from the marketplace without Rheomer® SC Plus.  

 

Powerful Suspending Ability and Electrolyte Tolerance

Yield value is typically used as an indication of a polymer’s ability to suspend particles. The higher the yield value, the better the suspending ability. Rheomer® SC-Plus exhibits concentration-dependent yield values which are enough to provide
suspension to a variety of materials.

Rheomer® SC-Plus also provides best-in-class electrolyte tolerance and stabilization even in emulsifier-free systems.

 

Powerful Suspending Ability and Electrolyte Tolerance

Yield value is typically used as an indication of a polymer’s ability to suspend particles. The higher the yield value, the better the suspending ability. Rheomer® SC-Plus exhibits concentration-dependent yield values which are enough to provide suspension to a variety of materials.

Rheomer® SC-Plus also provides best-in-class electrolyte tolerance and stabilization even in emulsifier-free systems.

Category

Functions

Benefits

Applications

  • Viscosity modifier
  • Stabilizer
  • Emulsifying agent
  • Texturizing
  • Cushioning effect
  • Non-tacky
  • Suspending effect
  • Preservative-free
  • Natural origin
  • Foundation
  • Cosmetics
  • Sunscreens
  • Creams lotions