Research
Latest published research we're tracking.
The newest skincare and haircare papers from PubMed, linked to the ingredients we decode. Summaries are the authors' own abstracts — we excerpt, attribute, and link out to the source.
57 papers under Sunscreen
In Vivo Measurement of UVA Protection Factor (ISO 24442:2011) Across 38 Different SPF 50 and SPF 50+ Sunscreens Reveals High Heterogeneity and Limitations in the Level of Protection.
Photodermatology, photoimmunology & photomedicine · 2026
BACKGROUND/PURPOSE: The UVB and UVA components of terrestrial solar ultraviolet radiation (UVR) cause acute and chronic damage to skin. These adverse effects can be reduced by sunscreen application. The sun protection factor (SPF) is primarily a measure of UVB protection against erythema and does not quantify protection from UVA, which is the major component of solar UVR. The study aim was to… Read on PubMed →
Broad-spectrum abnormal localized photosensitivity syndrome: a case report and literature review.
Photodiagnosis and photodynamic therapy · 2026
Broad-spectrum abnormal localized photosensitivity syndrome (BALPS) is a rare photodermatosis characterized by recurrent cutaneous eruptions occurring at fixed body sites following ultraviolet (UV) radiation exposure. This report presents a case of skin phototype III in a 30-year-old woman who presented with a 7-year history of recurrent erythematous to violaceous, edematous plaques occurring… Read on PubMed →
Sunscreen Efficacy Against UVA1- And Visible Light-Induced Skin Pigmentation Is Influenced by Ancestry.
Photodermatology, photoimmunology & photomedicine · 2026
BACKGROUND: There is growing evidence that individuals with different skin phototypes require tailored approaches to achieve optimal photoprotection. Individuals with darker skin phototypes are more prone to UVA1- and visible light-induced pigmentation, whereas lighter phototypes are more susceptible to shorter wavelengths such as UVB and UVA2. Thus, skin phototype is an important determinant of… Read on PubMed →
Histopathological evaluation of facial melasma treated with oral tranexamic acid alone and in combination with ketotifen.
Anais brasileiros de dermatologia · 2026
BACKGROUND: Tranexamic Acid (TA) has demonstrated effectiveness on melasma treatment, and Ketotifen (KET) may inhibit mast cell-mediated melanogenesis. The histologic basis of their depigmenting effects remains unclear. OBJECTIVES: To evaluate histopathological changes from TA with KET over a 3-month treatment. METHODS: In this randomized, double-blind trial, 50 women with facial melasma were… Read on PubMed →
Game theory and environmental health behavior: a population model of sunscreen use, social norms, and melanoma incidence.
Frontiers in public health · 2026
INTRODUCTION: Melanoma is a largely preventable yet economically significant cancer, particularly in high-UV regions. Despite strong evidence that sunscreen reduces melanoma risk, its use remains suboptimal due to misaligned private and social incentives. METHODS: We develop an evolutionary game-theoretic model in which individuals choose between sunscreen use and non-use. Payoffs incorporate… Read on PubMed →
Multi-metric health risk assessment of heavy metal contamination in cosmetics: A comparative analysis of makeup, henna and skin creams.
Regulatory toxicology and pharmacology : RTP · 2026
This study quantified thirteen metal impurities in 113 cosmetic products using validated ICP-MS. Widespread contamination was observed, with 50.4% of samples exceeding international limits. The highest concentrations occurred in pigment-rich products: cadmium reached 3052 mg/kg in blusher, lead 131 mg/kg in face powder, and chromium 11145 mg/kg in black henna. Risk assessment indicated safety… Read on PubMed →
The Role of AhR in Skin Photobiology: Yin-Yang Effects.
Experimental dermatology · 2026
Ultraviolet radiation (UVR) elicits complex, context‑dependent responses in the skin that reflect the balance between environmental stress and adaptive homeostatic mechanisms. The aryl hydrocarbon receptor (AhR) occupies a central position in this interface, acting as a tunable environmental sensor that can mediate both photodamage and photoprotection depending on ligand type, timing and cellular… Read on PubMed →
Unlocking the skin protection potential of discarded Dictyophora rubrovalvata volva: Structural, rheology and anti-photoaging insights into its unique polysaccharides.
International journal of biological macromolecules · 2026
Dictyophora rubrovalvata is a valuable edible fungus, while research on its bioactive components has primarily focused on the fruiting body, other parts, notably the discarded volva colloid, remain underexplored. In order to explore the skin protection of polysaccharides from volva colloid, herein, polysaccharides from the fruiting body (IP), pileus (FP), and volva colloid (VP) were extracted… Read on PubMed →
A Randomized, Double-Blinded Pilot Study Comparing Synthetic Versus Human-Derived Topical Epidermal Growth Factor for Facial Rejuvenation and Psychosocial Perception.
Journal of cosmetic dermatology · 2026
BACKGROUND: Topical growth factor-containing cosmeceuticals are widely used to improve visible signs of facial photoaging. Interest has increased in peptide-based alternatives that aim to support similar regenerative pathways without relying on human-derived biologics. AIM: To compare the clinical efficacy, tolerability, and exploratory psychosocial perception outcomes of a topical recombinant… Read on PubMed →
Integrated photoprotection and senescence modulation: A topical formulation counteracts cellular aging in human skin cells.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2026
BACKGROUND: Skin aging is driven by the accumulation of senescent cells that release a pro-inflammatory mediators, which collectively disrupt tissue homeostasis. Beside ultraviolet A (UVA) and ultraviolet B (UVB) radiation, high-energy visible blue-violet (HEV) light contributes to oxidative stress, mitochondrial dysfunction and premature keratinocyte senescence. A novel photoprotective topical… Read on PubMed →
From Ultraviolet to Visible Light: Emerging Concepts in Comprehensive Photoprotection.
Photodermatology, photoimmunology & photomedicine · 2026
BACKGROUND: Photoprotection has traditionally focused on ultraviolet (UV) radiation, particularly UVB and UVA. Recent evidence highlights the significant role of long-wavelength UVA1 (LW-UVA1, 370-400 nm) and visible light (VL; 400-700 nm) in inducing pigmentation, erythema, and photoaging. This review study summarizes recent advances in LW-UVA1 and VL photoprotection and discusses emerging… Read on PubMed →
Sauchinone attenuates UVB-induced photoaging by suppressing oxidative stress and ferroptosis through activation of the Keap1-Nrf2 pathway in dermal fibroblasts.
Pharmaceutical biology · 2026
CONTEXT: Skin photoaging induced by chronic ultraviolet B (UVB) exposure is primarily driven by oxidative stress. Emerging evidence suggests that ferroptosis contributes to UVB-induced skin damage. Sauchinone, a phenolic lignan derived from Saururus chinensis, possesses potent antioxidant and anti-inflammatory properties; however, its protective effects and underlying mechanisms against… Read on PubMed →
Biomimetic asymmetric Bletilla striata polysaccharide hydrogel with wet adhesion and antibacterial activity for active-passive treatment of infected wound.
International journal of biological macromolecules · 2026
Developing biomimetic asymmetric wound dressings that mimic the structure and multifunctionality of natural skin remains challenging. Here, we report a natural polysaccharide-based asymmetric hydrogel (MP/AMBGZ) derived from Bletilla striata polysaccharide (BSP) via a facile one-pot, two-step strategy. Methacrylated BSP forms a biocompatible network, while gallic acid provides wet adhesion and… Read on PubMed →
Skin-cancer screening preferences and trust in clinicians among outdoor enthusiasts: preference for specialist-led checks.
PeerJ · 2026
INTRODUCTION: Australian outdoor enthusiasts are at heightened risk of skin cancer due to high levels of ultraviolet (UV) exposure. Regular screening is essential for early detection; little is known about how trust in clinician expertise and screening frequency shape behaviors in this cohort . METHODS: A cross-sectional survey of 1,403 adult outdoor enthusiasts attending a skin cancer clinic… Read on PubMed →
Enhancing Photoprotection: Assessing Visible Light Photoprotection in Tinted Inorganic Sunscreens.
Photodermatology, photoimmunology & photomedicine · 2026
BACKGROUND: Visible light (VL, 400-700 nm) and long wavelength UVA1 (VL + UVA1, 370-700 nm) have been reported to cause erythema in light skin phototypes, Fitzpatrick skin types I-III (FST I-III), and to exacerbate pigmentary dermatologic conditions (e.g., melasma, hyperpigmentation, post-inflammatory hyperpigmentation) in individuals with dark skin phototypes (FST IV-VI). Until recently, limited… Read on PubMed →
Development and validation of a skin health knowledge, attitudes, and behaviors questionnaire for the general population: a cross-sectional study.
Frontiers in public health · 2026
BACKGROUND: Existing skin health assessments predominantly focus on single topics or diseases, making it difficult to cover the complete "Knowledge-Self-efficacy-Attitudes-Behaviors (KSAB)" continuum. OBJECTIVE: To develop and validate a skin health knowledge, attitudes, and behaviors questionnaire for the general population. METHODS: A cross-sectional online survey was conducted among the… Read on PubMed →
A curriculum-integrated sun safety intervention to improve adolescent skin health knowledge in an independent girls' secondary school.
PloS one · 2026
Australia has one of the world's highest melanoma incidences among youth. Adolescents often under-prioritise sun protection due to sociocultural factors, for example, the perceived attractiveness of tanned skin and a sense of invulnerability. This study reports on a curriculum-integrated sun safety intervention implemented in a single independent girls' secondary school, a context that provides… Read on PubMed →