Market trend of sunscreen

 Suncare industry worldwide is switching from chemical to mineral UV filters

 Increasing demand for low-irritant "all natural" products with pure mineral

   ingredients

 Increased attention on need for adequate UVA protection (as well as UVB)

 Broader use of UV filters in daily wear cosmetic like skin care & color cosmetics

Needs for effective

Mineral UVA filter

EU Recommendation on the efficacy of sunscreen products

    1. UVB Protection

      2. UVA Protection

3. Critical Wavelength

Sun Protection Factor minimum 6.

Only 8 defined SPF

values allowed

Level of UVA protection (measured by in vivo or

in vitro methods) at least

1/3 of labelled SPF.

(UVA label can be used

to highlight achievement

of protection level)

Additional criteria,

minimum of 370nm to

ensure broad band

protection

1.  Effective UVA Protection

2.  Broad spectrum protection

3.  Safe use

4.  Transparency

 Zinc Oxide meet so called  “ 1/3 rule” of EU  recommendation: Level  of  UVA protection (measured

 by in vivo or in vitro  methods) at least 1/3 of  labelled SPF .

 No other sunscreen ingredient  provides broader protection.

 It  uniformly covers from 290 to  380 nm, thus protecting  against UVB and most of  the  UVA spectrum.

 ZnO has long  history of  safe use in personal care  even for very sensitive  and/or impaired  skin like  Diaper cream & Calamine  lotion.

 FDA  includes ZnO  on its  list of substances  consider as Generally  Recognized as Safe  (GRAS), as  a nutrient.

 Comparing TiO2 & another  inorganic UV filter, Zinc  Oxide has less whitening  effect.

UV  Filters

US

EU

Australia &

New Zealand

Japan

China

Korea

 p-Aminobenzoic acid  (PABA)

15.0

5.0

15.0

4.0

5.0

5.0

 Avobenzone (BMDBM)

3.0

5.0

5.0

10.0

5.0

5.0

 Bisoctriazole (Methylene bis-benzotriazolyl  tetramethylbutylphenol )

N.A

10.0

10.0

10.0

10.0

10.0

 Cinoxate (2-Ethoxyethyl p-methoxycinnamate)

3.0

N.A

6.0

No limit

N.A

5.0

 Dioxybenzone (Benzophenone-8)

3.0

N.A

3.0

N.A

N.A

N.A

 Ethylhexyl Triazone

N.A

5.0

5.0

3.0

5.0

5.0

 Meradimate (Methyl anthranilate or
 Methyl-aminobenzoate)

5.0

N.A

5.0

N.A

N.A

5.0

 Octocrylene (2-ethylhexyl ester)

10.0

10.0

10.0

N.A

10.0

10.0

 Octinoxate (Octyl Methoxycinnamate or OMC / EMC)

7.5

10.0

10.0

12.0

10.0

7.5

 Octisalate ( Octyl Salicylate)

5.0

5.0

5.0

5.0

5.0

5.0

 Oxybenzone (Benzophenone-3)

6.0

10.0

10.0

5.0

10.0

10.0

 Trolamine Salicylate

12.0

N.A

12.0

N.A

N.A

N.A

 Titanium  Dioxide

25.0

25.0

25.0

No limit

25.0

25.0

 Zinc  Oxide

25.0

Tolerated

20.0

No limit

25.0

25.0

Grade

Surface treatment

Crystal

size (nm)

surface area(m2/g)

Remarks

 SUNZNO-UFAS

 Alkyl Silane

25

35~40

 The Smallest  Particle Size

 The most  Transparent

 SUNZNO-NAS

 Alkyl Silane

40

19~23

 Good  Transparency

 SUNZNO-NCO

 Dimethicone/

 Methicone  Copolymer

35

21~28

 Excellent  Silicone Oil compatibility

 SUNZNO-AS

 Alkyl Silane

80

5~10

 Standard

 SUNZNO

 none

150

n.a.

 Non-Nano,

 ECOCERT, Natural UV Filter

 SUNZNO-SA

 Stearic Acid

150

n.a.

 Non-Nano,

 ECOCERT, Natural UV Filter

  NON NANO ZnO

   SUNZNO

     150nm

     Untreated

     ECOCERT grade

SUNZNO-SA

 150nm

 Natural surface treatment

 ECOCERT grade

   NANO ZnO

   SUNZNO-UFAS:    

     25nm, the smallest particle      size,

     The most transparent grade

SUNZNO-NCO:

 Dimethicone/Methicone copolymer treatment    provides better compatibility with Silicone Oil
   (D5)

 Lower viscosity could be achieved

SUNZnO

               SUNZnO-SA

SUNZnO-NCO

                SUNZnO-NAS