The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50 — Efficacy 3.8/5.0, Safety 4.7/5.0 | DemythSkin
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[ DemythSkin Verdict ]
The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50

The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50

SunscreenUV protection, hydration, brightening, acne-safe
Efficacy
Solid
3.8 / 5.0
Safety
Safe
4.7 / 5.0
System Verdict
Solid daily driver for oily/acne-prone skin but undermined by photounstable filters and weak Vitamin C derivative. Efficacy score docked to 3.8 due to Avobenzone's rapid 36% degradation in sunlight without sufficient stabilizers like Tinosorb, Octocrylene only partially helps but requires reapplication; Ascorbyl Glucoside is stable but converts poorly to pure Vitamin C (needs ~10-15% for efficacy, likely lower here mid-list) missing Ferulic synergy; peptides and niacinamide add value but no encapsulation or optimal pH confirmation for actives; water-based gel packaging preserves stability better than jars.[1][2]
Active Ingredients Detected
A Tier: Good BasicsProven Results
AvobenzoneAscorbyl GlucosideSodium HyaluronatePanthenolNiacinamideTocopherol
B Tier: Supporting IngredientsPromising Ingredients
OctocrylenePeptidesCentella Asiatica Extract
D Tier: Potential IrritantsBe Cautious
Ethylhexyl Methoxycinnamate
What Each Ingredient Does
Ethylhexyl Methoxycinnamate
UVB chemical filter
Octocrylene
UVB/UVA stabilizer
Avobenzone
Broad UVA filter
Ascorbyl Glucoside
Stable Vitamin C derivative
Sodium Hyaluronate
Humectant hydrator
Panthenol
Soothing moisturizer
Peptides
Skin firming actives
Niacinamide
Brightening barrier booster
Tocopherol
Vitamin E antioxidant
Centella Asiatica Extract
Calming anti-inflammatory
Full Ingredient List (INCI)

Water, Propanediol, Butylene Glycol, Ethylhexyl Methoxycinnamate, Octocrylene, Ascorbyl Glucoside, Avobenzone, Sodium Hyaluronate, Panthenol, Peptides (likely Palmitoyl Tripeptide-1 or similar), Centella Asiatica Extract, Glycyrrhiza Glabra (Licorice) Root Extract, Scutellaria Baicalensis Root Extract, Camellia Sinensis Leaf Extract, Chamomilla Recutita (Matricaria) Flower Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Tocopherol, Niacinamide, Glycerin, Allantoin, Sodium PCA, Citric Acid, and other stabilizers/polymers (e.g., Acrylates/C10-30 Alkyl Acrylate Crosspolymer).[2]

Frequently Asked

Is The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50 worth it?

The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50 scores 3.8 out of 5.0 for efficacy (Solid) and 4.7 out of 5.0 for safety (Safe) on DemythSkin's independent ingredient analysis. Solid daily driver for oily/acne-prone skin but undermined by photounstable filters and weak Vitamin C derivative. Efficacy score docked to 3.8 due to Avobenzone's rapid 36% degradation in sunlight without sufficient sta

What are the key active ingredients in The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50?

The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50 contains no gold-standard actives — its formula is built on supporting and base ingredients rather than clinically transformative actives.

Does The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50 contain fragrance or known irritants?

DemythSkin flags these ingredients in The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50 as potential irritants: Ethylhexyl Methoxycinnamate.

How is The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50 scored?

DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.

Analyze on DemythSkin →

Analysis last updated: 2026-04-22. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.