List of Preservatives in Cosmetic Products  
No. Chemical name  INCI  name  CAS No.  Product type /Limit for the 
use Maximum concentration  Restriction  Precautions  
(The precautions to be labeled as 
specified shall be provided in Chinese ) 
1 Alkyl (C12 -22) trimethy l 
ammonium bromide and 
chloride  Behentrimonium chloride(1)/ 
Cetrimonium bromide/  
Cetrimonium chloride(1)/ 
Laurtrimonium bromide/  
Laurtrimonium chloroide/  
Steartrimonium bromide/  
Steartrimonium chloride(1) 17301 -53-0/ 
57-09-0/ 
112-02-7/ 
1119 -94-4/ 
112-00-5/ 
1120 -02-1/ 
112-03-8  0.1%    
2 Benzalkonium chloride, 
bromide and saccharinate(1) Benzalkonium chloride/  
Benzalkonium bromide/  
Benzalkonium saccharinate  8001 -54-5/ 
91080 -29-4/ 
61789 -71-7/ 
63449 -41-2/ 
68391 -01-5/ 
68424 -85-1/ 
68989 -01-5/ 
85409 -22-9  0.1%( as benzalkonium 
chloride)                                                                       Avoid contact  with eyes  
3 Benzenemethan aminium, 
N,N-dimethyl -N-[2-[2-[4-(1
,1,3,3, -tetramethylbutyl)phe
noxy]ethoxy] ethyl] -, chl o-
ride Benzethonium chloride  121-54-0 (a)Rinse -off products  
(b)Leave -on products 
other than oral products  0.1%    
4 Salts of benzoic acid and 
esters of benzoic acid  Ammonium benzoate/  
Butyl benzoate/  
Calcium benzoate/  
Ethyl benzoate/  
Isobutyl benzoate/  
Isopropyl benzoate/  
Magnesium benzoate/  
MEA -benzoate/  
Methyl benzoate/  
Phenyl benzoate/  
Potassium benzoate/  
Propyl benzoate/  1863 -63-4/ 
2090 -05-3/ 
582-25-2/ 
553-70-8/ 
4337 -66-0/ 
93-58-3/ 
93-89-0/ 
2315 -68-6/ 
136-60-7/ 
1205 -50-3/ 
939-48-0/ 
93-99-2/  0.5%  (as acid)    
5 Benzoic acid and its sodium  
salt Benzoic acid/  
Sodium benzoate  65-85-0/ 
532-32-1 (a)Leave -on products 
other than oral products  (a)2.5% ( as acid)    
(b)Leave -on products  (b)0.5%  (as acid)  No. Chemical name  INCI  name  CAS No.  Product type /Limit for the 
use Maximum concentration  Restriction  Precautions  
(The precautions to be labeled as 
specified shall be provided in Chinese ) 
(c)Oral products  (c)1.7%  (as acid)  
6 Benzyl alcohol  Benzyl alcohol  100-51-6  1%   
7 2-Benzyl -4-chlorophenol  Chlorophene  120-32-1  0.2%    
8 Tosylchloramide sodium  Chloramine T  127-65-1  0.2%    
9 N,N'-bis(4 -chlorophenyl) -3,
12-diimino -2,4,11,13 -tetraa
zatetradeca nediamidine and 
its digluconate, diacetate 
and dihydrochloride  Chlorhexidin e/ 
Chlorhexidine digluconate / 
Chlorhexidine dihydrochl o-
ride/ 
Chlorhexidine diacetate  55-56-1/ 
18472 -51-0/ 
3697 -42-5 
56-95-1/  0.3%  (as chlorhexidine)    
10 Chlorobutanol  Chlorobutanol  57-15-8  0.5%                                                   Not to b e used in aerosol 
products  Contains  Chlorobutanol  
11 Chlorocresol  p-Chloro -m-cresol  59-50-7  0.2%  Not to be used in  products 
applied on  mucous me m-
branes   
12 Chloroxylenol  Chloroxylenol  88-04-0/ 
1321 -23-9  0.5%    
13 1,2,3 -Propanetricarboxylic 
acid, 2 -hydroxy-, monoh y-
drate and 
1,2,3 -Propanetricarboxylic 
acid, 2 -hydroxy -, silver(1+) 
salt, monohydrate  Citric acid (and) Silver 
citrate  -  0.2%  (Corresponding to 
0.0024%  of silver ) Not to be used  in oral 
producrs  and eye products   
14 1-(4-Chlorophenoxy) -1-(imi
dazol-1-yl)-3,3-dimethylbut
an-2-one Climbazole  38083 -17-9  0.5%    
15 3-Acetyl -6-methylpyran -2,4
(3H) -dione and its salts  Dehydroacetic acid/  
Sodium dehydroacetate  520-45-6/ 
16807 -48-0/ 
4418 -26-2  0.6% ( as acid)  Not to be used in aerosol 
products   
16 4,4-Dimethyl -1,3-oxazolidi
ne Dimethyl oxazolidine  51200 -87-4  0.1%  pH>6   
17 2,2'-Methylenebis(6 -bromo -
4-chlorophenol)  Bromochlorophene  15435 -29-7  0.1%    
18 3,3'-Dibromo -4,4'-hexameth
ylene dioxydibenzamidine 
and its salts  
(including isethionate)  Dibromohexamid ine 
isethionate  93856 -83-8  0.1%    No. Chemical name  INCI  name  CAS No.  Product type /Limit for the 
use Maximum concentration  Restriction  Precautions  
(The precautions to be labeled as 
specified shall be provided in Chinese ) 
19 2,4-Dichlorobenzyl alcohol  Dichlorobenzyl alcohol  1777 -82-8  0.15%    
20 Ethyl -N-alpha -dodecanoyl -
L-arginate hydrochloride(1) Ethyl lauroyl arginate HCl  60372 -77-2 (a)Mouthwashes  (a)0.15%  (a)Not to be used in pre p-
arations for children under 
10 years of age  (a) Not to be used for 
children under 10 years of 
age. 
    (b)Other products  (b)0.4%  (b)Not to be used in lip, 
oral products( other than 
mouthwashes ), and spray 
products.  
21 5-Ethyl -3,7-dioxa -1-azabicy
clo [3.3.0]o ctane  7-Ethylbicyclooxazolidine  7747 -35-5  0.3%                                                                                                        Not to be used in oral 
products and in products 
applied on mucous me m-
branes   
22 Formic acid and its sodi um 
salt Formic acid/  
Sodium formate  64-18-6/ 
141-53-7  0.5% ( as acid)    
23 Glutaraldehyde  
(Pentane -1,5-dial)  Glutaral  111-30-8  0.1%                                                                                                      Not to be used in sp ray 
products  If the concentration e x-
ceeds 0 .05%: Contains 
glutaral  
24 Benzenecarboximidamide, 
4,4'-(1,6-hexanediylbis 
(oxy))bis - and its salts (i n-
cluding isethionate and 
p-hydroxyb enzoate)  Hexamidine/  
Hexamidine diisethionate/  
Hexamidine paraben  3811 -75-4/ 
659-40-5/ 
93841 -83-9  0.1%    
25 5-Pyrimidinamine, 1,3 -bis 
(2-ethylhexyl) hexah y-
dro-5-methyl  Hexetidine  141-94-6  0.1%    
26 Inorganic sulphites and 
hydrogensulphites(1) Sodium sulfite(3)/ 
Sodium bisulfite/  
Sodium metabisulfite/  
Potassium sulfite/  
Potas sium metabisulfite/  
Ammonium sulfite/  
Ammonium bisulfite  7757 -83-7/ 
7631 -90-5/ 
7681 -57-4/ 
7757 -74-6/ 
10117 -38-1/238
73-77-0/16731 -
55-8/4429 -42-9/ 
10196 -04-0/101
92-30-0/  0.2% (以free SO 2計)   No. Chemical name  INCI  name  CAS No.  Product type /Limit for the 
use Maximum concentration  Restriction  Precautions  
(The precautions to be labeled as 
specified shall be provided in Chinese ) 
27 3-Iodo-2-propynylbutylcarb
amate (2) Iodopropynyl butylcarb a-
mate  55406 -53-6 (a)Rinse -off products  (a)0.02%                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Not to be used in oral and 
lip products  
(a)Not to be used in pro d-
ucts for children under 3 
years of age, except in 
bath products/ shower gels 
and shampoo  (a) Precautions(other than 
bath products and sha m-
poo): N ot to be used for 
children under 3 years of 
age. 
(b)Leave -on products  (b)0.01%  (b) Not to be used in body 
lotion and body cream  (b)&(c)：Not to be used 
for children under 3 years 
of age.  
(c)Deodorants and a n-
ti-perspirants  0.0075%  (b)& (c)Not to be used in 
products for children u n-
der 3 years of age                         
28 4-Isopropyl -m-cresol  o-Cymen -5-ol 3228 -02-2  0.1%    
29 2-Methyl -2H-isothiazol -3-o
ne Methylisothiazolinone  2682 -20-4 Rinse -off products  0.0015%   
30 Mixture of 
5-Chloro -2-methyl -isothiaz
ol-3(2H) -one and 
2-Methylisothiazol -3(2H) -o
ne with magnesium chloride 
and magnesium nitrate  Methylchloroisothiazol i-
none (and) Methylisothi a-
zolinone  55965 -84-9,       
26172 -55-4,        
2682 -20-4 Rinse -off products  0.0015%  Mixture in the ratio 3:1 of 
5-Chloro -2-methyl -isothia
zol-3(2H) -one a nd 
2-Methylisothiazol -3(2H) -
one  
31 Biphenyl -2-ol, and its salts  o-Phenylphenol/  
Sodium o -phen ylphenate/  
MEA o -phenylphenate/  
Potassium o -phenylphenate  90-43-7/ 
132-27-4/ 
84145 -04-0/ 
13707 -65-8  0.2% ( as phenol)    
32 Butyl 4 -hydroxybenzoate 
and its salts Propyl 
4-hydroxybenzoate and its 
salts(2) Butylparaben/  
Propylparaben/  
Sodium propylparaben/  
Sodium butylparaben/  
Potassium butylparaben/  
Potassium propylparaben  94-26-8/ 
94-13-3/ 
35285 -69-9/ 
36457 -20-2/ 
38566 -94-8/ 
84930 -16-5  (a)0.14% ( as acid)，for the 
sum of the individual 
concentrations  
(b)0.8% ( as acid)，for 
mixtures of No.32 and 33 , 
where the sum of the ind i-
vidual concentrations of 
butyl paraben  and 
propylparaben and their 
salts does not exceed 0 .14 
%                                                                                                                                                    Not to be used in leave -on 
products for application 
on the nappy area of chi l-
dren under 3 years of age.  Precautions for leave -on 
products: Not to be us ed 
in leave -on products for 
application on the nappy 
area of children under 3 
years of age.  No. Chemical name  INCI  name  CAS No.  Product type /Limit for the 
use Maximum concentration  Restriction  Precautions  
(The precautions to be labeled as 
specified shall be provided in Chinese ) 
33 4-Hydroxybenzoic acid and 
its Methyl - and Ethyl - es-
ters, and their salts  Methylparaben/  
Ethylparaben/  
4-Hydroxybenzoic acid/  
Potassium ethylparaben/  
Potassium p araben/  
Sodium methylparaben/  
Sodium ethylparaben/  
Sodium paraben/  
Potassium methylparaben/  
Calcium paraben  99-76-3/ 
120-47-8/ 
99-96-7/ 
36457 -19-9/ 
16782 -08-4/ 
5026 -62-0/ 
35285 -68-8/ 
114-63-6/ 
26112 -07-2/ 
69959 -44-0  (a)0.4% ( as acid)，single 
ester  
(b)0.8% (as acid)，
mixtures of esters    
34 3-(p-Chlorophenoxy) -prop-
ane-1,2 diol  Chlorphenesin  104-29-0  0.3%    
35 2-Phenoxyethanol  Phenoxyethanol  122-99-6  1%   
36 1-Phenoxypropan -2-ol(1) Phenoxyisopropanol  770-35-4 Rinse -off products  1%   
37 Phenylmercuric sal ts (i n-
cluding borate)  Phenyl mercuric acetate/  
Phenyl mercuric benzoate  62-38-4/ 
94-43-9 Eye products  0.007% ( as Hg) When mixed with other 
mercurial compounds 
authorised by Regulation, 
the maximum concentr a-
tion of Hg remains fixed 
at 0.007 %  Contains Phenylmercuric 
compounds  
38 1-Hydroxy -4-methyl -6-(2,4,
4-trimethylpentyl) -2 pyr i-
don and its monoethanol a-
mine salt  1-Hydroxy -4-methyl -6-(2,4,
4-trimethylpentyl) -2-pyrido
n/ 
Piroctone olamine  50650 -76-5/           
68890 -66-4 (a) Rinse -off products  (a)1%   
    (b)Other products  (b)0.5%    
39 Poly(methylene),.alpha.,.om
ega.-bis[[[(aminoiminometh
yl)amino]iminomethyl]amin
o]-, dihydrochloride  Polyaminopropyl biguanide  32289 -58-0/ 
133029 -32-0/                 
28757 -47-3/                   
27083 -27-8  0.3%    
40 Propi onic acid and its salts  Propionic acid/  
Sodium propionate/  
Ammonium propionate/  
Calcium propionate/  
Magnesium propionate/  
Potassium propionate  79-09-4/ 
137-40-6/ 
17496 -08-1/ 
4075 -81-4/ 
557-27-7/ 
327-62-8  2% ( as acid)  Not to be used in products 
for childre n under 3 years 
of age, except for sha m-
poos   No. Chemical name  INCI  name  CAS No.  Product type /Limit for the 
use Maximum concentration  Restriction  Precautions  
(The precautions to be labeled as 
specified shall be provided in Chinese ) 
41 Salicylic acid and its salts  Salicylic acid (3)/ 
Calcium salicylate/  
Magnesium salicylate/  
MEA -salicylate/  
Sodium salicylate/  
Potassium salicylate/  
TEA -salicylate  69-72-7/ 
824-35-1/ 
18917 -89-0/ 
59866 -70-5/ 
54-21-7/ 
578-36-9/ 
2174 -16-5  0.5% ( as acid)                            Not to be used in products 
for children under 3 years 
of age, except for sha m-
poos  Precautions (other than 
shampoos): Not to be used 
for children under 3 years 
of age.  
42 Silver Chloride  deposited 
on titanium dioxide  Silver chloride  7783 -90-6  0.004% ( as AgCl)  20% AgCl (w/w) on TiO 2; 
Not to be used in products 
for children under 3 years 
of age, in oral products and 
in eye and lip products   
43 Hexa -2,4-dienoic acid and 
its salts  Sorbic acid/  
Potassium sorbate/  
Calcium sorbate/  
Sodium sorbate  110-44-1/ 
24634 -61-5/ 
7492 -55-9/ 
7757 -81-5  0.6% ( as acid)    
44 Thiomersal  Thimerosal  54-64-8 Eye products  0.007% ( as Hg) When mixed with other 
mercurial compounds 
authorised by Regulation, 
the maxi mum concentr a-
tion of Hg remains fixed 
at 0.007 %  Contains Thiomersal  
45 5-Chloro -2- (2,4- dichlor o-
phenoxy) phenol  Triclosan  3380 -34-5 (a)Toothpastes , Hand 
soaps ,  Body soaps/ 
Shower gels , Deodorants 
(other than spray  prod-
ucts), Face powders , 
Foundation,  Nail products 
for cleaning the finge r-
nails and toenails before 
the application of artificial 
nail systems  (a)0.3%                                                                                                            
    (b)Mouthwashes  (b)0.2 %   No. Chemical name  INCI  name  CAS No.  Product type /Limit for the 
use Maximum concentration  Restriction  Precautions  
(The precautions to be labeled as 
specified shall be provided in Chinese ) 
46 1-(4-Chlorophenyl) -3-(3,4-
dichlorophenyl)urea(3) Triclocarban  101-20-2  0.2%  Purity criteria: 
3,3',4,4' -Tetrachloroazobe
nzene <1 ppm ,  
3,3',4,4' -Tetrachloroazoxy
benzene <1 ppm   
47 Undec -10-enoic  acid and its 
salts Undecylenic acid/  
Potassium undecylenate/  
Calcium  undecylenate/  
Sodium  undecylenate/  
Mea-undecylenate/  
Tea-undecylenate  112-38-9/ 
6159 -41-7/ 
1322 -14-1/ 
3398 -33-2/ 
56532 -40-2/844
71-25-0  0.2% ( as acid)    
48 Pyrithione zinc(1) Zinc pyrithione  13463 -41-7 (a)Hair products  1% Only rinse -off pr oducts ; 
Not to be used in oral 
products   
(b)Other products  0.5%  
49 5-Bromo -5-nitro -1,3-dioxa -
ne 5-Bromo -5-nitro -1,3-dioxa -
ne 30007 -47-7 Rinse -off products  0.1%                                                                                                 Avoid formation of 
nitrosamines ; When used 
as preservatives in 
cosmetic products, the 
total amount of released 
free formalde hyde should 
not exceed 1000 ppm    
50 Bronopol  2-Bromo -2-nitropropane -1,
3-diol 52-51-7  0.1%  Avoid formation of 
nitrosamines ; When used 
as preservatives in 
cosmetic products, the 
total amount of released 
free formalde hyde should 
not exceed 1000 ppm   
51 Methanol, (pheny l-
methoxy -) Benzylhemiformal  14548 -60-8 Rinse -off products  0.15%  When used as preserv a-
tives in cosmetic products,  
the total amount of r e-
leased free formalde hyde 
should not exceed 1000 
ppm  No. Chemical name  INCI  name  CAS No.  Product type /Limit for the 
use Maximum concentration  Restriction  Precautions  
(The precautions to be labeled as 
specified shall be provided in Chinese ) 
52 1,3-Bis(hydroxymethyl) -5,5
-dimethylimidazolidine -2,4-
dione  DMDM hydantoin  6440 -58-0  0.6%  When used as preserv a-
tives in cosmetic products, 
the total amount of r e-
leased free for malde hyde 
should not exceed 1000 
ppm  
53 N-(Hydroxymethyl) -N- 
(dihydroxym e-
thyl-1,3-dioxo -                  
2,5-imidazolidinyl -4)-                               
N'-(hydroxymethyl) urea  Diazolidinyl urea  78491 -02-8  0.5%  When used as preserv a-
tives in cosmet ic products, 
the total amount of r e-
leased free formalde hyde 
should not exceed 1000 
ppm  
54 N,N'' -Methylenebis[N' -[3-(h
ydroxym e-
thyl) -2,5-dioxoimidazolidin
-4-yl]urea]  Imidazolidinyl urea  39236 -46-9  0.6%  When used as preserv a-
tives in cosmetic products, 
the total amount of r e-
leased free formalde hyde 
should not exceed 1000 
ppm  
55 Methenamine (Hexamet h-
ylenetetramine)  Methenamine  100-97-0  0.15%  When used as preserv a-
tives in cosmetic products, 
the total amount of r e-
leased free f ormalde hyde 
should not exceed 1000 
ppm  
56 Methenamine 
3-chloroallylochloride  Quaternium -15 4080 -31-3  0.2%  When used as preserv a-
tives in cosmetic products, 
the total amount of r e-
leased free formalde hyde 
should not exceed 1000 
ppm  
57 Sodium hydroxymethy la-
mino acetate  Sodium hydroxymethy l-
glycinate  70161 -44-3  0.5%  When used as preserv a-
tives in cosmetic products, 
the total amount of r e-
leased free formalde hyde 
should not exceed 1000 
ppm  No. Chemical name  INCI  name  CAS No.  Product type /Limit for the 
use Maximum concentration  Restriction  Precautions  
(The precautions to be labeled as 
specified shall be provided in Chinese ) 
(1) For use ot her than as a preservative, see “List of Ingredients Restri cted in Cosmetic Products ” 
(2) If the product is indeed not involved in the use of children under the age of three, the business may determine whether it is  necessary to print the precautions based on the attributes of the product. Ho w-
ever, if the product enda ngers consumers’  bodies and health because of not printing the precautions, the business shall assume related responsibility for its own.  
(3) For use ot her than as a preservative, see “List of Specific Purpose Ingredients in Cosmetic Products”  
※ Regarding preser vatives not listed within this table, if a jurisdiction such as the European Union, the United States or Japan has already announced permission of use and have applicable regulations,  
the preservative  can also be used in accordance to respective standards.  If there's a difference between the above jurisdictions, the safest limitation should be applied.  
※ The outer packaging or containers of cosmetics shall conspicuously label the  precautions.  If it cannot be labeled due to the surface area of outer packaging or container being too small or other special 
circumstances, said information shall be stated on the label, in the leaflet, or by other means.