311 CONSUMERS TRANSFER INORGANIC SUNSCREENS
(4) Food and Drug Administration. Sunscreen Drug Products for Over-The-Counter Human Use. Food and Drug
Administration 2019. Report No. :2019-03019.
(5) TikTok [internet] 2023. https://www.tiktok.com
(6) Google trends [internet]. Google Trends. Accessed April 19 2023. https://trends.google.com/trends/
explore?date=2018-01-01%202023-02-08&geo=US&q=mineral%20sunscreen,chemical%20
sunscreen 2023. Explore Publications.
(7) Buxton A. Plastic packaging – which plastic for what product? [internet]. Haleigh UK: Berlin Packaging
2017 Cited April 19 2023. https://berlinpackaging.co.uk/plastic-packaging/ updated 2017 March 9.
(8) Omnexus. Polyethylene terephthalate (PET) – uses, properties and structure [internet]. Paris Fr:
Specialchem. Accessed April 19 2023. https://omnexus.specialchem.com/selection-guide/polyethylene-
terephthalate-pet-plastic 2023.
(9) Omnexus. Polypropylene (PP) – types, properties, uses and structure [internet]. Paris Fr: Specialchem.
Accessed April 19 2023. https://omnexus.specialchem.com/selection-guide/polypropylene-pp-plastic
2023.
(10) Debeaufort F, Galic K, Kurek M, Benbettaieb S, M. PMetal packagingP. In: Debeaufort F, ed. Packaging
Materials and Processing for Food, Pharmaceuticals and Cosmetics. Wiley 2021.
(11) Happi. Reasons why premium beauty brands prefer heavy and thick-walled glass cosmetic containers
[internet] Cited April 19 2023. https://www.happi.com/buyersguide/profile/rayuen-packaging/view_
reasons-why-premium-beauty-brands-prefer-heavy-thick-walled-glass-cosmetic-containers/ 2023. Rayuen
Packaging.
(12) Ibrahim ID, Hamam Y, Sadiku ER, et al. Need for sustainable packaging: an overview. Polym. 2022
January Cited April 19 2023 14(20):4430. doi:10.3390/polym14204430
(13) Dow Corning. Silicone tubing for pharmaceutical processing. https://www.dupont.com/content/dam/
dupont/amer/us/en/mobility/public/documents/en/51367_52-1067B-01_r1_NewLegal.pdf
(14) Food and Drug Administration. Sunscreen: how to help protect your skin from the sun [internet] Cited
April 19 2023. https://www.fda.gov/drugs/understanding-over-counter-medicines/sunscreen-how-help-
protect-your-skin-sun 2022. Food and Drug Administration.
(15) Abou-Dahech M, Schaefer A, Lam-Phaure L, Huynh AN, Chandler M, Baki G. Effect of solvents on the
in vitro sun protection factor and broad-spectrum protection of three organic UV filters. J Cosmet Sci.
2020 71(3):149–165.
(16) Andrews DQ, Rauhe K, Burns C, et al. Laboratory testing of sunscreens on the US market finds lower
in vitro SPF values than on labels and even less UVA protection. Photodermatol Photoimmunol Photomed.
2022 38(3):224–232. doi:10.1111/phpp.12738
(17) Lab muffin beauty science. Purito Sunscreen and All about SPF Testing (with video) [internet]. Sydney
AUS: Michelle Wong Cited April 19 2023. https://labmuffin.com/purito-sunscreen-and-all-about-spf-
testing-with-video/ 2020.
(18) Hewitt,J.FeelandFunction:attuningattributesinmineralsunscreens.Cosmet.Toil.2020 135(9):56-DM26.
(19) Santoro MI, Da Costa E Oliveira DA, Kedor-Hackmann ER, Singh AK. The effect of packaging
materials on the stability of sunscreen emulsions. Int J Pharm. 2005 297(1-2):197–203. 10.1016/j.
ijpharm.2005.03.021.

SUPPORTING
INFORMATION
Figure
S1.
Viscosity
of
sunscreens.
(A)
ZnO
in
plastic,
(B)
ZnO
in
glass,
(C)
ZnO
in
metal
packaging
(D)
TiO 2
in
plastic,
(E)
TiO 2
in
glass,
(F)
TiO 2
in
metal
packaging
(G)
combination
in
plastic,
(H)
combination
in
glass,
(I)
combination
in
metal
packaging.
312 JOURNAL OF COSMETIC SCIENCE