SUN PROTECTION - A Deeper Knowledge

 

The sun is already shining for billions of years. It is responsible for life on earth. It has been worshipped by people for thousands of years – the sun god Helios, the Aztec sun god Nanauatzin, the Brazilian god of the sun Meri, and Amun, the sun god of the ancient Egyptians.

Natural sunlight has a major positive effect upon the human psyche – and we see health benefits such as the formation of vitamin D. But the negative effects of too much sun exposure has also been known for over 2000 years; the ancient Egyptians used inorganic clays and minerals to protect their skin, ancient Greek athletes covered their skin with a mixture of oil and sand when training for the Olympic games.

Only a small portion of the sun’s radiation reaches the earth’s surface. Of this, over half is received as infrared radiation (heat) and around 40% is seen as visible light. A small portion of about 6% is invisible UV radiation with wavelengths from 290 to 400 nm (UVA & UVB). Radiation below 290 nm does not reach the earth’s surface.

More than 80 years ago, Symrise responded to the then supposed major culprit for skin damage, UV radiation, with the UVB filter Neo Heliopan^® Hydro. Since then we have introduced a broad pallet of UV filters into our portfolio. More recently the damaging effects of visible light and infrared radiation have become known and Symrise is working on solutions to protect human skin from the different aspects of solar radiation, satisfying global & regional requirements.

 

 

UVA Filters

 

UVA rays, although being less energetic than UVB rays, penetrate into deeper layers of the skin where they can accelerate the skin’s aging processes. The shorter wave UVA-II radiation additionally contributes to the development of sunburn. Moreover, UVA radiation can trigger phototoxic or photoallergic skin reactions. Very frequent and unprotected irradiation of the skin by sunlight leads to a loss of skin elasticity and to increased development of wrinkles, resulting in premature skin aging. In extreme cases, pathogenic changes in the skin extending to skin cancer are observed.

Today UVA radiation is split into two further categories, UVA-II (320 to 340 nm) and UVA-I (340 to 400 nm). The split occurred on the recognition that wavelengths from 320 to 340 nm also contribute significantly to erythema and that UVA radiation with wavelengths greater than 340 nm caused long term skin damage via other mechanisms.

 

Neo Heliopan^® 357 

INCI: Butyl Methoxydibenzoylmethane
USAN: Avobenzone

• Oil-soluble
• The most important UVA filter in the world
• Highly effective with a maximum absorption at 357 nm with a specific extinction (E 1%/1cm) of about 1100 and with additional absorbing properties in the UVA-II spectrum
• Suitable Vegan according to Symrise policy
• Halal & Kosher status available on request

 

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Neo Heliopan^® AP

INCI: Disodium Phenyl Dibenzimidazole Tetrasulfonate

• Water-soluble
• Highly effective and photostable UVA II absorber with an UV absorbance of min 770 at around 335 nm which forms water-soluble salts with the addition of a base
• Practically odorless, excellent stability, compatible with other ingredients and packaging
• Suitable for water-based transparent sunscreen products such as gels or clear sprays as well as for creams and lotions
• Suitable Vegan according to Symrise policy
• Halal & Kosher status available on request

 

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UVB Filters

 

UV rays can cause acute and chronic damage to the skin. The type of damage depends on the wavelength: UVB radiation can cause sunburn extending to most severe burning of the skin. Harmful effects can be the reduction in enzyme activities, weakening of the immune system, disturbances of the DNA structure and changes in the cell membrane.

 

Neo Heliopan^® 303

INCI: Octocrylene
USAN: Octocrylene

• Oil-soluble
• Effective liquid UVB absorber which shows significant protection in the shorter UVA-II range (320 to 340 nm). Maximum absorption is at around 303 nm with an UV absorbance of min. 340
• Excellent photostability. Can improve the photostability of Butyl Methoxydibenzoylmethane
• Suitable Vegan according to Symrise policy
• Halal & Kosher status available on request

 

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Neo Heliopan^® OS

INCI: Ethylhexyl Salicylate
USAN: Octisalate

• Oil-soluble
• Effective UVB absorber with an UV absorbance of min. 165 at around 305 nm for various applications
• Effective solubilizer for crystalline UV absorbers such as Neo Heliopan^® 357, BMT, BB, MBC as well as Ethylhexyl Triazone, Diethylhexyl Butamido Triazone and Diethylamino Hydroxybenzoyl Hexyl Benzoate
• Suitable Vegan according to Symrise policy
• Halal & Kosher status available on request

 

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Neo Heliopan^® HMS

INCI: Homosalate
USAN: Homosalate

• Oil-soluble
• Effective UVB absorber with an UV absorbance of min. 170 at 305 nm for various applications
  
• Effective solubilizer for crystalline UV absorbers such as Neo Heliopan^® 357, BMT, BB, MBC as well as Ethylhexyl Triazone, Diethylhexyl Butamido Triazone and Diethylamino Hydroxybenzoyl Hexyl Benzoate
  
• Suitable Vegan according to Symrise policy
• Halal & Kosher status available on request

 

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Neo Heliopan^® Hydro

INCI: Phenylbenzimidazole Sulfonic Acid
USAN: Ensulizole

• Water-soluble
• Highly effective UVB absorber with an UV absorbance of min. 920 at around 302 nm which forms water-soluble salts with the addition of a base
• Practically odorless, excellent stability, compatible with other ingredients and packaging
• Excellent photostability and safety profile
• Very suitable for water-based transparent sunscreen products such as gels or sprays as well as for creams and lotions
  
• Suitable Vegan according to Symrise policy
• Halal & Kosher status available on request

 

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Neo Heliopan^® AV

INCI: Ethylhexyl Methoxycinnamate
USAN: Octinoxate

• Oil-soluble
• Highly effective UVB absorber with a specific extinction of min. 830 at around 308 nm in methanol and has additional absorption in the shorter UVA-II range (320 to 340 nm)
• Excellent solvent for crystalline and oil-soluble UV absorbers such as Neo Heliopan^® 357, BMT, BB, MBC as well as Ethylhexyl Triazone, Diethylhexyl Butamido Triazone and Diethylamino Hydroxybenzoyl Hexyl Benzoate
  
• Suitable Vegan according to Symrise policy
• Halal & Kosher status available on request

 

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Neo Heliopan^® E1000

INCI: Isoamyl p-Methoxycinnamate

• Oil-soluble
• Highly effective UVB absorber with a specific extinction of min. 980 at around 308 nm in methanol and has additional absorption in the shorter UVA-II range (320 to 340 nm)
• Excellent solvent for crystalline and oil-soluble UV absorbers such as Neo Heliopan^® 357, BMT, BB, MBC as well as Ethylhexyl Triazone, Diethylhexyl Butamido Triazone and Diethylamino Hydroxybenzoyl Hexyl Benzoate
  
• Suitable Vegan according to Symrise policy
• Halal & Kosher status available on request

 

Find all you need to know about Neo Heliopan^® E1000 in SymSelect

 

 

Neo Heliopan^® MBC

INCI: 4-Methylbenzylidene Camphor

• Oil-soluble
• Highly effective UVB absorber with a specific extinction of min. 930 at around 299 nm in methanol and has additional absorption in the shorter UVA-II range (320 to 340 nm)
• Can improve the photostability of Butyl Methoxydibenzoylmethane
• Suitable Vegan according to Symrise policy
• Halal & Kosher status available on request

 

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Neo Heliopan^® EHT

INCI: Ethylhexyl Triazone

• Oil soluble
• Highly effective & photostable UVB absorber with a maximum absorption at 315 nm
• Synergistic effect with water soluble and inorganic UV filters
• Allows the formulation of waterproof formulas
• No whitening effect on the skin
• Suitable for all phototypes and skin types
• Vegan suitable according to Symrise guidelines
• Halal suitable

 

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UVA/UVB Broad Spectrum Filters

 

Broad spectrum UV filters have an absorbance covering the spectrum of both UVA and UVB rays.

 

Neo Heliopan^® BMT

 INCI: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine

• Oil-soluble
• Very effective and photostable broad spectrum absorber for a wide range of applications
• Maximum absorbances in isopropanol are at 310 nm, with a minimum specific extinction of 720 and at 340 nm, with a minimum specific extinction of 790 respectively
• Synergistic effect with UVB and UVA filters (SPF booster) and especially recommended for formulating sunscreens which shall meet the requirements of UVA/UVB balance due to its broad spectrum absorption
• Suitable Vegan according to Symrise policy
• Halal & Kosher status available on request

 

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Neo Heliopan^® BB

INCI: Benzophenone-3
USAN: Oxybenzone

• Oil-soluble
• Effective broad spectrum absorber with max. protection in the short-wave UVB and UVA spectra (UVB at approx. 285 nm, UVA at approx. 325 nm)
• Can be used up to 0.5% as a light stabilizer for cosmetic formulations
• Suitable Vegan according to Symrise policy
• Halal & Kosher status available on request

 

Learn all about Neo Heliopan^® BB and our complete portfolio in SymSelect

 

 

Neo Heliopan^® Flat

 INCI: Homosalate, Octocrylene, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Butyl Methoxydibenzoylmethane, Ethylhexyl Salicylate

• Oil-soluble
• Optimal broad spectrum protection (delivers a relatively flat uniform absorbance in the  range 300 to 360nm)
• Easy to use and dose
• Suitable for a wide range of applications (lotion, cream, spray, balm, oil)
• Reduces manufacturing complexity
• Suitable Vegan according to Symrise policy
• Halal & Kosher status available on request

 

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Neo Heliopan^® ZnO 40

 INCI: Zinc Oxide, Triethoxycaprylylsilane

• Mineral filter with highly effective broad-spectrum UVA & UVB protection
  (delivers a relatively flat uniform absorbance in the range 290 to 370 nm)
• Particle size: nano
• No whitening effect on the skin
• Excellent sensorial skin feel
• Can be combined with other mineral or chemical UV filters
• Suitable for all skin types, sensitive skin, kids
• Suitable for all kind of personal care applications from face care to beach products
• Not soluble
• Vegan suitable according to Symrise policy
• Halal suitable

 

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Neo Heliopan^® ZnO 300

 INCI: Zinc Oxide, Triethoxycaprylylsilane

• Mineral filter with highly effective broad-spectrum UVA & UVB protection
  (delivers a relatively flat uniform absorbance in the range 290 to 380 nm)
• Particle size: non-nano
• Reduced whitening effect on the skin
• Excellent sensorial skin feel
• Can be combined with other mineral or chemical UV filters
• Suitable for all skin types, sensitive skin, kids
• Suitable for all kind of personal care applications from face care to beach products
• Not soluble
• Vegan suitable according to Symrise policy
• Halal suitable

 

Learn more about Neo Heliopan^® ZnO 300 in SymSelect