All scans / Sunscreens / The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50
The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50 ingredients: is it worth it?
Solid daily driver for oily/acne-prone skin but undermined by photounstable filters and weak Vitamin C derivative.

Solid daily driver for oily/acne-prone skin but undermined by photounstable filters and weak Vitamin C derivative.
READ MORE
Efficacy score docked to 3.9 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]
We may earn a commission from qualifying purchases. Links never influence scores.
DemythSkin rates The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50 3.9/5 for efficacy and 4.8/5 for safety.
ACTIVE INGREDIENTS BY TIER
Gold Standards
High clinical proof | Skin-transformativeReliable
Proven resultsPotent
Developing evidenceOverhyped | Marketing
Hype | Limited dataDocumented Irritants
Evidence-backed flagFULL INGREDIENT LIST⌄
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]
WHAT EACH INGREDIENT DOES (10)⌄
- 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
EXTERNAL CITATIONS
Avobenzone: Loses 36% UV absorption after 1 hour sunlight[2]
Ascorbyl Glucoside: Stable but weaker than L-ascorbic acid[2]
Octocrylene: Stabilizes but loses 10% SPF in 35 min[2]
DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.
The Formula Rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50: common questions
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 3.9 out of 5.0 for efficacy (Effective) and 4.8 out of 5.0 for safety (Very Gentle) on DemythSkin's independent ingredient analysis. Solid daily driver for oily/acne-prone skin but undermined by photounstable filters and weak Vitamin C derivative.
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 documented 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 scores: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are graded S through D against a database of over 3,000 compounds. Brand and price are not part of the score, and no brand pays for one.
Free scores for every product in the database, or see them on Sephora, Ulta and Amazon with the Chrome extension.