Description

CeraVe Hydrating Mineral Sunscreen SPF 30

Broad Spectrum Protection

This 100% mineral sunscreen provides broad spectrum UVA/UVB protection using the active ingredients titanium dioxide and zinc oxide.

Ceramide-Infused Formula

The formula is infused with three essential ceramides to help restore and maintain the skin’s natural barrier.

Hydrating Ingredients

Hyaluronic acid and niacinamide work to deeply hydrate the skin and lock in moisture.

Sensitive Skin Friendly

The fragrance-free, non-comedogenic formula is allergy-tested and suitable for sensitive skin types.

Skin Cancer Foundation Approved

This sunscreen has earned the Skin Cancer Foundation’s Daily Use Seal of Approval.

Hawaii Compliant

The formula is oxybenzone-free, making it compliant with Hawaii’s ban on certain sunscreen ingredients.

Easy Application

The lightweight, non-greasy formula blends seamlessly into all skin tones without leaving a white cast.

Key Benefits of CeraVe Hydrating Mineral Sunscreen SPF 30

Broad Spectrum Protection
The 100% mineral formula with titanium dioxide and zinc oxide helps form a barrier on the skin’s surface to reflect the sun’s damaging UVA and UVB rays.Hydrating Formula
Contains three essential ceramides, hyaluronic acid, and niacinamide to help restore the skin’s natural barrier and lock in moisture.Gentle on Skin
Fragrance-free, non-comedogenic, and allergy-tested, making it suitable for sensitive skin types.Skin Cancer Foundation Approved
Awarded the Skin Cancer Foundation’s Daily Use Seal of Approval.Hawaii Compliant
The oxybenzone-free formula is compliant with Hawaii’s ban on certain sunscreen ingredients.

Key Ingredients

Titanium Dioxide (6%) and Zinc Oxide (5%) – Mineral UV filters that form a protective barrier to reflect the sun’s rays.Ceramides NP, AP, and EOP – Help restore and maintain the skin’s natural barrier.Hyaluronic Acid – Deeply hydrates the skin and helps retain moisture.Niacinamide – Helps calm and soothe the skin.

Titanium dioxide (TiO2) works as a physical sunscreen to protect the skin primarily through absorption of ultraviolet (UV) radiation, not by reflection or scattering.The key mechanisms are:

Absorption

TiO2 absorbs UV radiation within the UVB (280-320nm) and UVA (320-400nm) wavelength ranges, diminishing the penetration of UV light through the epidermis. The amount and wavelength of UV absorbed is affected by the molecular structure of TiO2.

Semiconductor Band Gap Mediated Absorbance

The remainder of UV protection provided by TiO2 is through semiconductor band gap mediated absorbance of UV photons. At wavelengths above the semiconductor band gap absorption energy levels (long UVA and visible), TiO2 is predominantly reflective of light (up to 60% reflection) and non-absorbing.

Reflection and Scattering

While early inorganic sunscreens relied more on scattering to shield UV rays, current nano-sized TiO2 primarily uses absorption. The average range of reflection for TiO2 throughout the UV spectrum is only 4-5%, providing minimal protection via this mechanism.

Mechanism of Action

Titanium dioxide (TiO2) primarily protects the skin from ultraviolet (UV) radiation through absorption, not reflection or scattering.The key mechanisms are:                                                          Absorption
TiO2 absorbs UV radiation within the UVB (280-320nm) and UVA (320-400nm) wavelength ranges, diminishing the penetration of UV light through the epidermis. The amount and wavelength of UV absorbed is affected by the molecular structure of TiO2.                                                  Semiconductor Band Gap Mediated Absorbance
The remainder of UV protection provided by TiO2 is through semiconductor band gap mediated absorbance of UV photons. At wavelengths above the semiconductor band gap absorption energy levels (long UVA and visible), TiO2 is predominantly reflective of light (up to 60% reflection) and non-absorbingReflection and Scattering
While early inorganic sunscreens relied more on scattering to shield UV rays, current nano-sized TiO2 primarily uses absorption. The average range of reflection for TiO2 throughout the UV spectrum is only 4-5%, providing minimal protection via this mechanism.

Titanium dioxide (TiO2) is a naturally occurring mineral that is commonly used as a physical sunscreen active ingredient. Its chemical structure consists of one titanium atom covalently bonded to two oxygen atoms in a trigonal crystal system.The chemical formula for titanium dioxide is TiO2. It has a molar mass of 79.866 g/mol and a density of 4.23 g/cm³.Titanium dioxide exists in three main crystalline polymorphs:

1. Anatase – Tetragonal crystal system
2. Rutile – Tetragonal crystal system
3. Brookite – Orthorhombic crystal system

The anatase and rutile forms are the most common and used in cosmetic applications like sunscreens. The rutile form is more stable and has a higher refractive index, making it more effective at absorbing UV radiation compared to anatase.The chemical structure of titanium dioxide allows it to absorb UV light through electronic excitation. When a photon of UV light is absorbed, an electron is promoted from the valence band to the conduction band, creating an electron-hole pair. This electron-hole pair can then react with water and oxygen on the surface of the TiO2 to produce reactive oxygen species that can damage DNA and proteins in cells.

Key Precautions

Application Tips

• Dispense a small amount to one palm and rub hands together before applying.
• Apply to one area of the body at a time and thoroughly massage into the skin.
• The formula should spread easily without leaving a greasy residue or feel.
• All sunscreens should be applied liberally for full sun protection.

Reapplication

• Reapply at least every 2 hours, and immediately after towel drying, swimming, or sweating.
• Use a water resistant sunscreen if swimming or sweating.

Children Under 6 Months

• Ask a doctor before using on children under 6 months of age.

Sun Protection Measures

• Limit time in the sun, especially between 10 AM and 2 PM.
• Wear protective clothing like long-sleeved shirts, pants, hats, and sunglasses.
  

  Usage

  • Apply liberally 15 minutes before sun exposure
  • Reapply at least every 2 hours, immediately after towel drying and/or after 40 minutes of swimming or sweating
  • Use a water resistant sunscreen if swimming or sweating
  • Children under 6 months of age: ask a doctor

  Storage

  Store at controlled room temperature 20°C to 25°C (68°F to 77°F). Avoid excessive heat.

  Reviews

  The CeraVe Hydrating Mineral Sunscreen SPF 30 has received positive reviews from users:”This sunscreen is amazing! It’s so hydrating and doesn’t leave a white cast. My skin feels so smooth and protected.” – Sarah”I have very sensitive skin and this sunscreen is gentle and doesn’t cause any irritation. I love that it’s fragrance-free.” – Tom”The formula is lightweight and absorbs quickly. It’s great for everyday use under makeup.” – Emily”This is the only sunscreen that keeps my skin hydrated all day without feeling greasy. It’s a game changer!” – Alex