TiO2 (TITANIUM DIOXIDE)
Commonly Found In
Overview
Titanium dioxide is an inorganic mineral compound used extensively in cosmetics as both a broad-spectrum physical UV filter and a white pigment in makeup formulations. As a UV filter, it works by reflecting and scattering UVB and some UVA radiation from the skin surface, providing protection without chemical absorption; it is typically combined with zinc oxide in mineral sunscreens to extend UVA coverage. Studies suggest it is among the most photostable UV filter options available, maintaining efficacy over prolonged sun exposure. Both conventional (non-nano) and nano-form particles are used; nano-form titanium dioxide is more cosmetically elegant on skin but requires additional regulatory labeling in the EU, and its inhalation risk in spray formulations has prompted specific usage restrictions.
Also known as: TiO2, Titanium White, CI 77891, Titania, Titanium(IV) oxide
Key Benefits
Studies suggest titanium dioxide provides reliable, photostable broad-spectrum UV protection, particularly strong in the UVB range with moderate UVA coverage. It is particularly valued in formulations for sensitive and acne-prone skin because it is chemically inert, does not generate reactive oxygen species upon UV exposure in properly coated forms, and lacks the sensitization potential associated with some organic UV filters.
Supporting Research
- β’ Pinnell SR et al. (2000). Microfine zinc oxide is a superior sunscreen ingredient to microfine titanium dioxide. Dermatologic Surgery, 26(4), 309-314. Compared UVA protection of zinc oxide vs. titanium dioxide.
- β’ Nohynek GJ et al. (2010). Nanotechnology, cosmetics and the skin: is there a health risk? Skin Pharmacology and Physiology, 23(1), 9-19. Reviewed penetration and safety data for nano TiO2 in sunscreens.
- β’ SCCS Opinion SCCS/1516/13 (2013). Confirmed nano titanium dioxide does not penetrate healthy skin to a significant extent and is safe for use in sunscreen products.
Skin Compatibility Ratings
Comedogenic Rating
Non-comedogenic. Chemically inert on skin surface; does not interact with sebum to cause comedone formation.
Source: Draelos ZD & DiNardo JC (2006). A re-evaluation of the comedogenicity concept. JAAD, 54(3), 507-512.
Irritancy Rating
Non-irritating on intact skin. Inhalation risk (spray products) is a separate concern addressed by specific product-form restrictions, not relevant to leave-on or lotion formats.
Source: CIR Expert Panel and SCCS assessments of titanium dioxide in cosmetics.
Typical Use Concentration
Range
2-25%
Optimal
5-15% (for sunscreen efficacy)
FDA-approved as OTC sunscreen active at 2-25%. Lower concentrations used as a pigment or mild UV booster in makeup. Japan allows it as a quasi-drug UV filter in sun protection products.
Works Well With / Avoid
Works Well With
Titanium dioxide is chemically inert and compatible with virtually all cosmetic ingredients. Photocatalytic activity (which can degrade organic compounds) is suppressed in cosmetic-grade titanium dioxide through surface coating with alumina or silica.
Commonly Found In
Global Regulation Summary
Overview of current status across major international markets.
Detailed Regional Status
| Region | Status | Max Conc. | Conditions | Source |
|---|---|---|---|---|
| πͺπΊ EU | Allowed | - | - | Official β |
| πΊπΈ USA | Allowed | - | - | Official β |
| π―π΅ Japan | Allowed | - | - | Official β |
| π°π· Korea | Restricted | 25% | When used as UV protection | Official β |
| π¬π§ UK | Banned | - | Follows EU regulations (IV 143 VI 27 VI 27a (nano)) | Official β |
π Why Regulations Differ
FDA classifies titanium dioxide as a Category I (safe and effective) OTC sunscreen active up to 25% under 21 CFR Part 352. The EU regulates it under Annex VI as a UV filter, with a separate Annex VI entry for the nano form (VI/27a) that requires mandatory '[nano]' labeling under Article 19(1)(g) of Regulation (EC) 1223/2009. The EU ban of titanium dioxide (E171) in food (2022) was based on oral genotoxicity data and is categorically distinct from topical cosmetic use, where skin penetration data are substantially different. Japan classifies it as a quasi-drug UV filter for sun protection claims. Australia TGA permits it as a sunscreen active.
Recent Regulatory Changes
- β’ EU SCCS Opinion SCCS/1516/13 (2013) assessed nano-form TiO2 as safe in sunscreens.
- β’ EU prohibition of titanium dioxide as food additive E171 effective August 2022 (Commission Regulation (EU) 2021/2090) β applies only to food, not cosmetics.
- β’ EU mandatory nano labeling in cosmetics effective from July 2013.
Regulation Analysis
Regional Agreement
Banned in UK but allowed in EU, USA, Japan.
Category Comparison
There are 193 ingredients in the COLORANT category. 100% are banned in at least one major market.
Strictness Ranking
πΏ Natural Sources
Found in the minerals rutile and anatase. Also occurs in ilmenite ore, which is the primary source for commercial production.
π How It's Made
Extracted from ilmenite ore through the sulfate process or chloride process. Purified to create different crystal forms (rutile or anatase) with varying properties.
π Uses in Cosmetics
Used at up to 25% in sunscreens as a physical UV filter (broad spectrum UVA/UVB protection). Also used as a white pigment in makeup. Nano and non-nano forms available.
π¬ Other Applications
Used as food colorant E171 (banned in EU food since 2022), white pigment in paints and plastics, and photocatalyst for water purification.
π‘ Fun Facts
- β’ The EU banned titanium dioxide (E171) in food in 2022 due to DNA safety concerns, yet the same substance is still widely used and approved in EU sunscreens
- β’ The whitest white paint uses titanium dioxide at concentrations up to 25%, the same as some sunscreens
- β’ Nano-sized particles are more transparent on skin but must be labeled as [nano] in EU cosmetics since 2013
Related Skin Concerns
Data Sources
- β’ SCCS Opinion SCCS/1516/13 (2013) on nano titanium dioxide.
- β’ Pinnell SR et al. (2000). Dermatologic Surgery, 26(4), 309-314.
- β’ FDA 21 CFR Part 352 β Sunscreen OTC drug monograph.
- β’ EU Regulation (EC) 1223/2009 Annex VI entries 27, 27a.
- β’ CIR Expert Panel safety assessment of titanium dioxide.
- β’ Draelos ZD & DiNardo JC (2006). JAAD, 54(3), 507-512.
Last data verification: 2026-04-12
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BUTYL METHOXYDIBENZOYLMETHANE
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Frequently Asked Questions
What is TITANIUM DIOXIDE used for in cosmetics?
TITANIUM DIOXIDE is primarily used for colorant in cosmetic products. It also serves as opacifying, uv absorber. The ingredient is commonly found in makeup products, hair dyes, and colored cosmetics.
Which countries regulate TITANIUM DIOXIDE?
TITANIUM DIOXIDE is banned in UK. It has concentration limits or usage restrictions in KR. The ingredient is freely allowed in EU, JP, US.
Are there alternatives to TITANIUM DIOXIDE?
Due to regulatory restrictions on TITANIUM DIOXIDE, cosmetic manufacturers often use alternative ingredients with similar functions. For colorant, alternatives may include other approved ingredients in the same category. Consult product labels for specific formulations, and look for products compliant with your region's regulations.
Where can I find official regulation information about TITANIUM DIOXIDE?
Official information about TITANIUM DIOXIDE regulations can be found on government websites: EU CosIng database, US FDA Cosmetics page, Japan MHLW cosmetics standards, UK Government cosmetics guidance, and Korea MFDS. Always verify regulatory status with these official sources before making formulation decisions.
Disclaimer
The information on this website is for educational and informational purposes only and is not intended as medical advice. While we strive for accuracy based on official government databases, cosmetic regulations change frequently. Always consult with a qualified professional or refer to the latest official regulatory documents for compliance. We are not responsible for any actions taken based on the information provided here.