Earth Rhythm

ULTRA DEFENCE HYBRID SUNSCREEN FLUID SPF 50

Provides excellent broad-spectrum UV protection

Hybrid Chemical DominantFluid
78
StrongOverall Rating
Based on formula analysis

Most Suitable For


Skin Type Match

42%

Hydrating · Sensitizing · Lightweight

Pros
  • Highly hydrating
  • Fragrance-free formula
  • Strong UV protection
Cons
  • Irritates damaged skin
  • Low emolliency
  • Contains essential oils
View other sunscreens for Skin with Psoriasis

Performance Scores

SPF Level

Excellent

Bemotrizinol provides strong absorption with peaks at 310 nm and 340 nm, complementing the broad-spectrum UV scattering of zinc oxide to justify the high SPF claim.

Broad Spectrum

Excellent

DHHB (peak 354 nm) and Bemotrizinol (peak 340 nm) are powerful next-generation UVA I/II absorbers, ensuring sustained and robust broad-spectrum protection up to 400 nm.

Sweat Resistance

Poor

The presence of Dimethicone, Cyclopentasiloxane, and Sodium Polyacrylate prominently in the ingredient list indicates strong film-forming infrastructure for unverified water resistance.

Photo Stability

Excellent

Photobiology research confirms that DHHB, Bemotrizinol, and Zinc Oxide are exceptionally photostable and do not undergo rapid photodegradation.

Visible Light

Poor

A scan of the ingredient list confirms the complete absence of iron oxide color indices (e.g., CI 77491, CI 77492, CI 77499).

Irritation Risk

Medium Risk

Cosmetic Ingredient Review (CIR) safety assessments emphasize that triethylene glycol and PEG compounds should not be used on compromised barriers due to risks of systemic toxicity and irritation.

Pore Clogging

Medium Risk

Dermatological reference scales evaluate Carrot Seed Oil at a 3-4/5 comedogenicity rating due to its high concentration of oleic acid.

White Cast

Low Risk

Low-concentration particulate zinc oxide mixed with modern organic filters typically avoids significant visible chalkiness on Fitzpatrick I-IV skin.


Ingredients Analysis

Active Filters

Bemotrizinol ChemicalBroad Spectrum UV

Identified in recent dermatological literature as a rare but emerging cause of allergic contact dermatitis.

DHHB ChemicalUVA II / UVA I

Approved in the EU and most global markets up to ten percent but currently not approved by the US FDA or Health Canada as an active sunscreen ingredient.

Zinc Oxide MineralBroad Spectrum UV / High Energy Visible

Key Inactive Ingredients

Water WaterSolvent
Propanediol PolyolHumectant
Coconut Fruit Juice Botanical ExtractSkin Conditioning
Aloe Vera Extract Botanical ExtractSkin Conditioning

Unpurified whole leaf aloe extracts may contain anthraquinones like aloin which have shown carcinogenic potential in oral animal studies but cosmetic grade aloe is decolorized to safely limit these compounds to below 50 parts per million [1.3].

Sodium Polyacrylate PolymericThickener
Dimethicone SiliconeEmollient
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.

Trideceth-6 NonionicEmulsifier

Ethoxylated ingredients like trideceth-6 may contain trace amounts of 1,4-dioxane and ethylene oxide, which are probable carcinogens resulting from the manufacturing process.

PEG/PPG-18/18 Dimethicone Silicone EmulsifierEmulsifier

Because it contains polyethylene glycol and polypropylene glycol it carries a risk of trace contamination with dioxane and ethylene oxide which are toxic byproducts of the manufacturing process [2.1].

Carrot Seed Oil Natural OilEmollient

Contains high levels of oleic acid and typically scores a 3 to 4 on the comedogenic scale making it likely to clog pores and exacerbate breakouts in acne prone individuals [2.4].

Polyacrylate Crosspolymer-6 PolymericThickener
Vitamin E VitaminAntioxidant
Phenoxyethanol PhenoxyethanolPreservative

Generally well tolerated but can cause contact dermatitis or skin irritation in rare cases, particularly in sensitive individuals.

Triethylene Glycol GlycolSolvent

Should not be used on damaged skin due to the risk of systemic toxicity and contact dermatitis as observed with similar PEG based ointments in burn patients [1.5].