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The Derma Co 1% Hyaluronic Sunscreen Oil-Free Gel Clinical Testing
Independently Lab Tested
TDC 1% Hyaluronic Sunscreen Oil-Free Matte Gel: Efficacy and Clinical Testing Guide
Independently tested at CCFT Laboratories (ISO 24444:2019) with a verified in-vivo SPF of 51 and PA++++ rating (CTRI/2025/02/079913).
This product was evaluated for sunscreen efficacy at CCFT Laboratories Pvt. Ltd. in accordance with international standards and regulatory guidelines.
At a Glance: Sunscreen Efficacy Metrics
| In-Vivo SPF | In-Vitro SPF | PA Rating | UVA-PF | Broad Spectrum | Critical Wavelength |
|---|---|---|---|---|---|
| 51 | 52 | PA++++ | 16 | Yes | 376 nm |
1. Study Overview and Design Parameters
| Study Parameter | Detail |
|---|---|
| Study Title | Sunscreen Efficacy Study — TDC 1% Hyaluronic Sunscreen Oil-Free Gel |
| Specific Parameters Measured | Sun Protection Factor (SPF), UVA Protection Factor (UVA-PF), PA Rating, Critical Wavelength, Broad Spectrum Classification |
| Why These Parameters Matter | UVB radiation causes sunburn and contributes to skin cancer. UVA radiation penetrates deeper to cause photoaging, tanning, and long-term structural skin damage. The PA rating system communicates UVA protection levels. Critical wavelength confirms the breadth of spectral coverage. |
| Study Type | In-vivo and in-vitro sunscreen efficacy evaluation |
| Testing Methods | ISO 24444:2019 (In-vivo SPF), COLIPA Guideline (In-vitro SPF, UVA-PF, Broad Spectrum, Critical Wavelength) |
| Specific Product Studied | TDC 1% Hyaluronic Sunscreen Oil-Free Gel (exact commercial formulation) |
| Product Connection | The formulation combines six synthetic UV filters to achieve an SPF of 51 and a PA++++ rating. It also contains 1% Sodium Hyaluronate, Niacinamide, and the Aquaxyl complex to maintain stratum corneum hydration and deliver a matte finish. |
2. Claim Substantiation Matrix
| Claim | Certificate | Evidence | Status |
|---|---|---|---|
| SPF 51 | Sunscreen Efficacy Certificate | In-vivo SPF 51 measured via ISO 24444:2019 | Supported |
| PA++++ | Sunscreen Efficacy Certificate | PA++++ rating with UVA-PF 16 via COLIPA Guideline | Supported |
| Broad Spectrum | Sunscreen Efficacy Certificate | Critical Wavelength 376 nm exceeds the 370 nm threshold | Supported |
| In-Vivo Tested | Sunscreen Efficacy Certificate | ISO 24444:2019 in-vivo study on human participants | Supported |
| CTRI Registered | Clinical Trials Registry | CTRI/2025/02/079913 registered on 03/02/2025 | Verified |
3. Sunscreen Efficacy Study Details
3.1 Lab, Date, Standards, and Registration
| Field | Detail |
|---|---|
| Product Tested | TDC 1% Hyaluronic Sunscreen Oil-Free Gel |
| Sponsor / Brand Owner | The Derma Co (Honasa Consumer Ltd) |
| Testing Laboratory | CCFT Laboratories Pvt. Ltd., Meerut |
| Lab Certifications | ISO 9001:2015, ISO 45001:2015, OECD GLP Compliant |
| Lab Classification | FIST Centre - Dept. of Science & Technology, Govt. of India |
| CTRI Registration No. | CTRI/2025/02/079913 |
| Registration Date | 03 February 2025 |
| In-Vivo Test Method | ISO 24444:2019 |
| In-Vivo SPF Result | 51 |
| In-Vitro Test Method | COLIPA Guideline |
| In-Vitro SPF Result | 52 |
| UVA Protection Factor | 16 |
| PA Rating | PA++++ |
| Broad Spectrum | Yes |
| Critical Wavelength | 376 nm |
| Signed By | Puneet Mittal, Director R&D, CCFT Laboratories |
3.2 Test Results and Clinical Interpretation
| Metric | Result | Clinical Interpretation |
|---|---|---|
| SPF (In-Vivo) | 51 | Under ISO 24444:2019 standards, the product provides 51 times more protection against UVB-induced erythema than unprotected skin. This classifies it in the SPF 50+ tier. |
| SPF (In-Vitro) | 52 | The in-vitro result aligns closely with the in-vivo result. This indicates strong formulation consistency across different testing methodologies. |
| UVA Protection Factor | 16 | Skin takes 16 times longer to develop UVA-induced persistent pigment darkening with the product applied. This is the minimum numerical requirement for a PA++++ rating. |
| PA Rating | PA++++ | PA++++ is the highest category in the Protection Grade of UVA system used in Asia. It signifies maximum defense against long-wave UVA rays that cause deep structural photoaging. |
| Critical Wavelength | 376 nm | Critical wavelength measures the point where 90% of a sunscreen's total UV absorbance occurs. At 376 nm, the product exceeds the 370 nm international threshold, confirming extended coverage into the UVA-I range. |
4. Formulation Architecture and UV Filter System
The TDC 1% Hyaluronic Sunscreen Oil-Free Gel was tested exactly as commercially available. The formulation uses a multi-filter system designed for broad-spectrum coverage, photostability, and skin compatibility.
| Formulation System | Key Components | Function and Performance Rationale |
|---|---|---|
| UVB Filter System | Ethylhexyl Methoxycinnamate, Phenylbenzimidazole Sulfonic Acid, Ethylhexyl Salicylate | These three UVB filters absorb radiation in the 290-320 nm range to drive the SPF 51 result. Ethylhexyl Salicylate additionally functions as an Avobenzone photostabilizer. |
| UVA Filter System | Butyl Methoxydibenzoylmethane (Avobenzone), Terephthalylidene Dicamphor Sulfonic Acid (Mexoryl SX) | Avobenzone absorbs radiation primarily at the 360 nm range. Mexoryl SX extends coverage across the broader UVA spectrum. Together, they drive the UVA-PF of 16 and the 376 nm critical wavelength. |
| Broad Spectrum Anchor | Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (Tinosorb M) | Tinosorb M absorbs and scatters UV radiation across both UVA and UVB ranges. It anchors the overall protective range to achieve the broad spectrum classification. |
| Photostabilization System | Ethylhexyl Salicylate, Tinosorb M | Avobenzone degrades rapidly under direct UV exposure when used alone. This formula includes Ethylhexyl Salicylate and Tinosorb M to prevent this degradation. These stabilizers ensure the UV filters maintain their protective performance under continuous sun exposure. |
| Hydration System | Sodium Hyaluronate, Glycerin, Propylene Glycol, Aquaxyl Complex | The hydration system uses Sodium Hyaluronate as the primary humectant. The Aquaxyl complex draws moisture into multiple layers of the stratum corneum. This combination prevents transepidermal water loss during daily wear. |
| Skin Health Actives | Niacinamide, Tocopheryl Acetate, Blueberry Extract, Allantoin, Biosaccharide Gum-4 | Niacinamide supports the skin barrier and reduces hyperpigmentation. Vitamin E and Blueberry Extract provide antioxidant protection against free radicals. Allantoin conditions the skin, while Biosaccharide Gum-4 supports the cutaneous microbiome. |
| Texture and Distribution | Ammonium Acryloyldimethyltaurate/VP Copolymer, Isododecane, Tapioca Starch, Olivem 1000 | The gel matrix ensures uniform UV filter distribution across the skin surface. Isododecane aids rapid spreading before evaporating. Tapioca Starch absorbs sebum to provide a matte finish. Uniform distribution prevents gaps in UV protection. |
4.1 Exclusion Profile: What is Not in This Formula
| What is absent | Why it matters |
|---|---|
| No mineral oil | The formula uses lightweight emollients like Caprylic/Capric Triglyceride instead of petrolatum derivatives. This supports the oil-free claim and prevents a greasy finish. |
| No heavy occlusives | The gel formulation avoids heavy waxes and butters. This prevents a greasy feel and supports comfortable daily wear. |
| No physical UV filters | This chemical sunscreen uses organic UV filters instead of mineral filters like zinc oxide. Organic filters provide a transparent finish without the white cast associated with mineral sunscreens. |
5. Published Research on Key UV Filters and Actives
| Ingredient | Primary Published Finding | Relevance to Product |
|---|---|---|
| Avobenzone | Avobenzone absorbs UVA radiation at 360 nm but degrades rapidly when unprotected. Research shows that photostabilizers like Octisalate and Tinosorb M prevent this degradation and maintain UVA protection. | Primary UVA filter; photostabilized by Octisalate and Tinosorb M in this formula. |
| Tinosorb M | Tinosorb M provides dual UVA and UVB protection through absorption and scattering. Research demonstrates it is highly photostable and functions as an effective Avobenzone photostabilizer. | Broad-spectrum anchor; contributes to SPF 51, UVA-PF 16, and 376 nm critical wavelength. |
| Mexoryl SX | Clinical studies confirm Mexoryl SX provides UVA protection across the 310-400 nm range. It is inherently photostable and complements Avobenzone for comprehensive coverage. | Extends UVA coverage; contributes to PA++++ rating and broad spectrum classification. |
| Niacinamide | A 2002 randomized clinical trial found that 5% niacinamide significantly reduced hyperpigmented spot area after 8 weeks. A 2004 study demonstrated that niacinamide improves skin barrier function and reduces transepidermal water loss. | Supports skin barrier and reduces hyperpigmentation in daily-use sunscreen. |
| Sodium Hyaluronate | Hyaluronic acid is a humectant that draws moisture to the stratum corneum. Clinical studies demonstrate its ability to improve skin hydration and reduce transepidermal water loss. | Provides hydration support in daily-use sunscreen, preventing dryness. |
6. Frequently Asked Questions About Sunscreen Efficacy
A: Under ISO 24444:2019 laboratory standards, SPF 51 means the sunscreen provides 51 times more protection against UVB-induced erythema than unprotected skin. This classifies the product in the SPF 50+ tier, offering the highest level of UVB defense.
A: A UVA Protection Factor of 16 indicates that skin takes 16 times longer to develop UVA-induced persistent pigment darkening when the sunscreen is applied. This numerical value is the minimum requirement to achieve a PA++++ rating.
A: PA++++ is the highest classification in the Protection Grade of UVA system used in Asia, requiring a UVA-PF of 16 or higher. It signifies maximum defense against long-wave UVA rays that cause deep structural photoaging and tanning.
A: In-vivo testing measures SPF on human skin under ISO 24444:2019 standards, while in-vitro testing uses optical laboratory methods to measure UVA protection and critical wavelength. This product achieved an in-vivo SPF of 51 and an in-vitro SPF of 52, demonstrating high formulation consistency.
A: Broad Spectrum is a regulated classification confirming that a sunscreen provides verified protection across both UVB and UVA wavelengths. A product must achieve a critical wavelength of at least 370 nm to earn this designation.
A: Critical wavelength measures the point where 90% of a sunscreen's total UV absorbance occurs. At 376 nm, this product exceeds the 370 nm international threshold, confirming extended coverage into the UVA-I range responsible for deep skin penetration.
A: The Clinical Trials Registry-India (CTRI) is a government-maintained public database managed by the Indian Council of Medical Research. Registering study CTRI/2025/02/079913 creates a publicly verifiable record of the sunscreen's efficacy testing parameters and results.
A: CCFT Laboratories is a Department of Science and Technology designated FIST Centre that operates under OECD Good Laboratory Practice guidelines. The facility holds ISO 9001:2015 and ISO 45001:2015 certifications for quality and occupational health management.
A: Yes, the TDC 1% Hyaluronic Sunscreen Oil-Free Gel tested at CCFT Laboratories is the exact commercial formulation sold to consumers. No modifications or prototype variations were used during the efficacy evaluation.
A: Synthetic organic filters like Avobenzone and Tinosorb M are required to absorb and scatter UV radiation to achieve high SPF and PA ratings. Natural extracts like Hyaluronic Acid and Blueberry Extract are included separately to provide topical hydration and antioxidant support.
7. Lab References and Certificate Details
| Field | Detail |
|---|---|
| Testing Laboratory | CCFT Laboratories Pvt. Ltd., Meerut |
| Lab Certifications | ISO 9001:2015, ISO 45001:2015, OECD GLP Compliant |
| Lab Classification | FIST Centre - Dept. of Science & Technology, Govt. of India |
| CTRI Registration No. | CTRI/2025/02/079913 |
| Registration Date | 03 February 2025 |
| In-Vivo Test Method | ISO 24444:2019 |
| In-Vitro Test Method | COLIPA Guideline |
| Sponsor / Brand Owner | The Derma Co (Honasa Consumer Ltd) |
| Signed By | Puneet Mittal, Director R&D, CCFT Laboratories |
| Certificate Date | February 2025 |
All certificates on this page reflect testing on the product formulation as commercially available. Results are test-specific. Real-world outcomes may differ from study conditions. Reapplication as directed on product packaging is recommended regardless of photostability.
8. References
- Hakozaki T, et al. The effect of niacinamide on reducing cutaneous pigmentation and suppression of melanosome transfer. Br J Dermatol. 2002;147(1):20-31. PMID: 12100180.
- Bissett DL, et al. Topical niacinamide reduces yellowing, wrinkling, red blotchiness, and hyperpigmented spots in aging facial skin. Int J Cosmet Sci. 2004;26(5):231-8. PMID: 18492135.
- National Institutes of Health, Office of Dietary Supplements. Niacinamide Fact Sheet for Health Professionals. NIH; 2021.
- ISO 24444:2019. Cosmetics - Sun protection test methods - In vivo determination of the sun protection factor (SPF). International Organization for Standardization; 2019.
- COLIPA. Method for the in vitro determination of UVA protection provided by sunscreen products. COLIPA; 2011.
- Diffey BL. The CIE action spectrum for ultraviolet-induced erythema and its use in determining the sun protection factor of sunscreen agents. J Photodermatol Photoimmunol Photomed. 1991;8(4):160-2.
- Wang SQ, et al. Photoprotection: A review of the current and future technologies. Dermatol Ther. 2010;23(1):31-47. PMID: 20136889.
- CCFT Laboratories Pvt. Ltd. Sunscreen Efficacy Certificate for TDC 1% Hyaluronic Sunscreen Oil Free Gel. CTRI/2025/02/079913. CCFT Laboratories; 2025.
Annexure: UV Filter Photostability and Formulation Design
| Topic | Detail |
|---|---|
| Avobenzone Photostability Challenge | Avobenzone absorbs UVA radiation at the 360 nm range but degrades rapidly under direct UV exposure when used alone. This photodegradation reduces the sunscreen's UVA protection factor over time. |
| Photostabilization Strategy | This formulation includes Ethylhexyl Salicylate and Tinosorb M to prevent Avobenzone degradation. Ethylhexyl Salicylate absorbs excess UV energy, while Tinosorb M stabilizes the molecule through energy transfer mechanisms. |
| Why This Matters | A sunscreen that is not photostable will provide decreasing protection the longer it is exposed to sunlight. The inclusion of photostabilizers ensures the durability of the SPF 51 and PA++++ protection measured in this study. |
| Clinical Trials Registry (CTRI) | CTRI registration (CTRI/2025/02/079913) creates a publicly verifiable record of this study at ctri.nic.in. This formal step enhances transparency and allows independent verification of the study's existence and parameters. |