Earth Rhythm

GLOW SURGE SUNSTICK SPF 50

High broad spectrum UV protection

Hybrid BalancedStick
48
Needs ReviewOverall Rating
Based on formula analysis

Most Suitable For


Skin Type Match

60%

Gentle · Anhydrous · Emollient

Pros
  • Completely fragrance free
  • No drying alcohols
  • Rich emollient base
Cons
  • Zero active hydration
  • Requires separate hydrator
  • May sting slightly
View other sunscreens for Dehydrated Sensitive Skin

Performance Scores

SPF Level

Excellent

Label claims SPF 50, which is structurally corroborated by the inclusion of Zinc Oxide, Octinoxate, Homosalate, and Bemotrizinol.

Broad Spectrum

Excellent

Bemotrizinol provides peak absorption at 345 nm and Zinc Oxide extends protection up to 400 nm, effectively blanketing the entire critical UVA spectrum.

Sweat Resistance

Excellent

Ingredients like Cyclopentasiloxane, Phenyl Trimethicone, and Dibutyl Lauroyl Glutamide form a robust, highly water-repellent gel and polymeric film on the skin.

Photo Stability

Fair

Cosmetic chemistry literature shows Bemotrizinol acts as an effective stabilizer for photolabile organic filters, though Octinoxate remains vulnerable to degradation.

Visible Light

Poor

The ingredient list is devoid of iron oxide color indices (e.g., CI 77491, CI 77492, CI 77499) and relies on clear gelling agents characteristic of an invisible stick format.

Irritation Risk

Low Risk

Ingredients like zinc oxide, cyclopentasiloxane, and caprylic/capric triglyceride are widely recognized in dermatological literature as non-irritating and barrier-supportive.

Pore Clogging

Low Risk

Clinical comedogenicity scales evaluate the primary lipids present (caprylic/capric triglyceride and sunflower seed oil) at 0 to 2 out of 5, indicating a low risk of follicular occlusion.

White Cast

Medium Risk

Non-tinted zinc oxide particulate filters scatter visible light, consistently producing a white cast on Fitzpatrick skin types IV-VI (J Am Acad Dermatol).


Ingredients Analysis

Active Filters

Zinc Oxide and Coco-Caprylate/Caprate MineralBroad Spectrum UV / High Energy Visible
Octinoxate ChemicalUVB

Studies indicate potential estrogenic and thyroid disrupting activity in animal models and human cell lines.

Homosalate ChemicalUVB

Laboratory studies indicate homosalate may act as an endocrine disruptor by interfering with hormone systems [1.1].

Bemotrizinol ChemicalBroad Spectrum UV

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

Key Inactive Ingredients

Caprylic/Capric Triglyceride Fatty Acid EsterEmollient
Sunflower Seed Oil Natural OilEmollient
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.

Phenyl Trimethicone SiliconeEmollient

May contain trace amounts of cyclic siloxanes (such as D4 and D5) from the manufacturing process, which are restricted in the EU due to environmental bioaccumulation concerns [2.7].

Dimethiconol SiliconeEmollient
C12-15 Alkyl Benzoate Synthetic OilEmollient
Dimethicone Crosspolymer Silicone ElastomerSensory Modifier
Dibutyl Ethylhexanoyl Glutamide Texture EnhancerSensory Modifier
Dibutyl Lauroyl Glutamide Texture EnhancerSensory Modifier
Vitamin C VitaminAntioxidant
Methyl Methacrylate Crosspolymer Texture EnhancerSensory Modifier

Functions as a synthetic polymer microbead that is often classified as a microplastic, raising concerns about environmental persistence and marine pollution.

Vitamin E VitaminAntioxidant