The Doctor's Desk

While he FDA recognizes zinc oxide as GRASE, which is an acronym for “generally recognized as safe and effective.” The below ingredients are problematic for many skin types, causing allergies and outbreaks or simply being hazardous to your health. 

• Aminobenzoic acid (PABA)
• Trolamine salicylate
• Cinoxate
• Dioxybenzone
• Ensulizole
• Homosalate
• Meradimate
• Octinoxate
• Octisalate
• Octocrylene
• Padimate O
• Sulisobenzone
• Oxybenzone
• Avobenzone 
• 
  

These ingredients that are not considered GRASE or require further research. For now, it is our recommendation to avoid them.

Counteracting the White Cast from Natural Mineral Ingredients

To minimize the white cast from zinc oxide sunscreens, try using less product and blending it thoroughly, applying in layers, opting for a tinted sunscreen, or using a moisturizer first. Some formulas are designed to avoid white cast, and applying sunscreen in thin layers can also help. 

Here's a more detailed breakdown:

• Moisturize first: Applying a moisturizer can help the sunscreen blend more seamlessly into the skin. 
• Use less product: Applying a smaller amount and blending it well can help reduce the appearance of a white cast. 
• Apply in layers: Instead of applying a thick layer, try applying thinner layers and blending each layer. 
• Opt for tinted sunscreens: These can help neutralize the white cast. 
• Choose a sunscreen designed for minimal white cast: Some sunscreens are specifically formulated to avoid a white cast. 
• Blend thoroughly: Ensure the sunscreen is rubbed in well and absorbs into the skin. 
• Let it absorb: Allow the sunscreen time to absorb before applying other products like makeup. 
• Consider gel-based formulas: Gel-based sunscreens are often more lightweight and may be less likely to leave a white cast. 
• Avoid vigorous rubbing: Instead, use a gentle patting motion to apply and blend the sunscreen. 
• Use a makeup sponge or brush for blending: This can help achieve a more even application and reduce the appearance of white cast. 
• Use a makeup primer before sunscreen: This can help create a smooth canvas for the sunscreen and prevent it from sitting on the skin's surface. 
• Choose micronized zinc oxide: These smaller particles blend more easily into the skin. 

For individuals with darker Fitzpatrick skin types, mineral sunscreens with titanium dioxide and zinc oxide can sometimes leave a noticeable white or purple cast due to the way these minerals reflect light. To combat this, look for sunscreens that are specifically formulated to blend with darker skin tones or that contain tinted formulations. Additionally, consider using a smaller amount of sunscreen and spreading it thoroughly to minimize the appearance of a cast. 

Here's a more detailed breakdown:

Understanding the Problem:

• Mineral Sunscreen Basics:
  Mineral sunscreens use zinc oxide and titanium dioxide to physically block UV rays by creating a barrier on the skin's surface. 
• Why the Cast?
  These minerals tend to reflect light, which can cause a visible white or purple cast, particularly on darker skin tones. 
• Darker Skin Considerations:
  Sunscreens that may appear invisible or leave a light tint on lighter skin can leave a more noticeable cast on darker skin. 

Solutions and Recommendations:

1. 1. Seek Tinted Formulations:
   Opt for sunscreens that are tinted to match your skin tone or that have a formulation designed to blend seamlessly with darker skin tones. 
2. 2. In addition to what we offer you might consider these over-the-counter choices:
   Some recommended products for darker skin include:
   • SkinCeuticals Physical Matte UV Defense SPF 50 (tinted and mattifying) 
   • La Roche-Posay Anthelios Mineral Tinted Ultra Light Face Sunscreen Fluid SPF 50 
   • Supergoop! Tinted Mineral Shield SPF 40 

1. 3. Use a Smaller Amount:
   Applying a smaller amount of sunscreen and spreading it evenly can help to minimize the appearance of a cast. 
2. 4. Consider the SPF:
   While SPF 30 is recommended for daily use, if you'll be outside for extended periods, consider using a higher SPF (greater than 50).