La Shield

Mineral Sports Sunscreen Gel SPF 50+

Highly photostable 25% zinc oxide

MineralGel
82
StrongOverall Rating
Based on formula analysis

Most Suitable For


Skin Type Match

45%

Matte · Comedogenic · Protective

Pros
  • Highly matte finish
  • Strong UV protection
  • Extreme sweat resistance
Cons
  • High comedogenic risk
  • Lacks iron oxides
  • Leaves white cast
View other sunscreens for Oily Skin with Hyperpigmentation

Performance Scores

SPF Level

Excellent

Label claims SPF 50+, corroborated by a 25% concentration of Zinc Oxide, a highly effective UVB/UVA mineral filter.

Broad Spectrum

Excellent

Zinc Oxide has a broad absorption spectrum extending up to 400 nm (peak at 370 nm), covering both the critical UVA II and UVA I ranges.

Sweat Resistance

Excellent

The presence of robust hydrophobic film-formers, notably Dimethicone Crosspolymer and Dimethicone/PPG-20 Crosspolymer, creates a highly durable, water-resistant barrier on the skin.

Photo Stability

Excellent

Photobiology literature establishes that inorganic mineral filters like Zinc Oxide do not undergo UV-induced photodegradation.

Visible Light

Poor

Absence of iron oxide color indices (e.g., CI 77491, CI 77492, CI 77499) and pigmentary-grade non-white minerals in the provided ingredient list.

Irritation Risk

Low Risk

Zinc oxide and high-molecular-weight silicones (dimethicone crosspolymers) are widely documented in dermatological literature as non-irritating and barrier-protective.

Pore Clogging

High Risk

Clinical comedogenicity scales and dermatological rabbit ear assays consistently rate isostearic acid as highly comedogenic (typically 4/5 or 5/5).

White Cast

Medium Risk

Studies confirm that even micronized zinc oxide at maximum regulatory limits (25%) exhibits sufficient residual opacity to create a visible white film on deeper skin tones.


Ingredients Analysis

Active Filters

Zinc Oxide MineralBroad Spectrum UV / High Energy Visible

Key Inactive Ingredients

C12-15 Alkyl Benzoate Synthetic OilEmollient
Isostearic Acid Fatty AcidSkin Conditioning

Frequently flagged in dermatological databases as having a high comedogenic rating, meaning it has the potential to clog pores and exacerbate acne in susceptible individuals [2.5].

Polyhydroxystearic Acid PolymericEmulsifier
Cyclopentasiloxane SiliconeEmollient

The European Union is restricting this ingredient to a maximum concentration of one tenth of a percent in leave on cosmetics effective June 2027.

Dimethicone Crosspolymer Silicone ElastomerSensory Modifier
Caprylyl Methicone SiliconeEmollient
PEG-12 GlycolSolvent

PEG compounds may be contaminated with trace amounts of 1,4-dioxane and ethylene oxide, which are probable human carcinogens created as byproducts during the ethoxylation manufacturing process.

Dimethicone/PPG-20 Crosspolymer Silicone ElastomerSensory Modifier
DL-Alpha-Tocopheryl Acetate VitaminAntioxidant