A Robust Method for the Analysis of Commonly Used Sunscreen
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A Thesis Entitled Evaluating UVB and UVA Boosting Technologies For
A Thesis entitled Evaluating UVB and UVA Boosting Technologies for Chemical and Physical Sunscreens by An Ngoc Hiep Huynh Submitted to the Graduate Faculty as partial fulfillment of the requirements for the Master of Science Degree in Pharmaceutical Sciences Industrial Pharmacy ___________________________________________ Gabriella Baki, Ph.D., Committee Chair ___________________________________________ Jerry Nesamony, Ph.D., Committee Member ___________________________________________ Matthew W. Liberatore, Ph.D., Committee Member ___________________________________________ Dr. Amanda C. Bryant-Friedrich, Dean College of Graduate Studies The University of Toledo May 2020 Copyright 2020 An Ngoc Hiep Huynh This document is copyrighted material. Under copyright law, no parts of this document may be reproduced without the expressed permission of the author. An Abstract of Evaluating UVB and UVA Boosting Technologies for Chemical and Physical Sunscreens by An Ngoc Hiep Huynh Submitted to the Graduate Faculty as partial fulfillment of the requirements for the Master of Science Degree in Pharmaceutical Sciences Industrial Pharmacy The University of Toledo May 2020 There are currently 14 organic and 2 inorganic UV filters approved in the United States. Due to coral reef safety concerns, octinoxate and oxybenzone have been banned in Hawaii, Key West, FL and the US Virgin Islands; and octocrylene is also being studied for its potential impact on coral reef safety, leaving 11 organic UV filters as viable options for sunscreen manufacturers – with limitations on their combination. Since consumers are always looking for sunscreens with high SPF and broad-spectrum protection, the need for UVB and UVA protection boosting technologies is greater than ever. In a preliminary study, about two dozen emollients were scanned for their SPF boosting capability with selected organic UV filters. -
GAO-18-61, SUNSCREEN: FDA Reviewed Applications For
United States Government Accountability Office Report to Congressional Committees November 2017 SUNSCREEN FDA Reviewed Applications for Additional Active Ingredients and Determined More Data Needed GAO-18-61 November 2017 SUNSCREEN FDA Reviewed Applications for Additional Active Ingredients and Determined More Data Needed Highlights of GAO-18-61, a report to congressional committees Why GAO Did This Study What GAO Found Using sunscreen as directed with other The Food and Drug Administration (FDA), within the Department of Health and sun protective measures may help Human Services, implemented requirements for reviewing applications for reduce the risk of skin cancer—the sunscreen active ingredients within time frames set by the Sunscreen Innovation most common form of cancer in the Act, which was enacted in November 2014. For example, the agency issued a United States. In the United States, guidance document on safety and effectiveness testing in November 2016. sunscreen is considered an over-the- counter drug, which is a drug available As of August 2017, all applications for sunscreen active ingredients remain to consumers without a prescription. pending after the agency determined more safety and effectiveness data are Some sunscreen active ingredients not needed. By February 2015, FDA completed its initial review of the safety and currently marketed in the United States effectiveness data for each of the eight pending applications, as required by the have been available in products in act. FDA concluded that additional data are needed to determine that the other countries for more than a ingredients are generally recognized as safe and effective (GRASE), which is decade. Companies that manufacture needed so that products using the ingredients can subsequently be marketed in some of these ingredients have sought the United States without FDA’s premarket approval. -
Toxic Effects
Chapter 8 Toxic effects Toxic and other adverse effects studies of tens or hundreds of patients spectrum to which the skin is exposed of sunscreens (Thune, 1984; English et al., 1987; (Gasparro et al., 1998). Since UVB is the In order for a sunscreen to have a toxic Lenique et al., 1992; Szczurko et al., primary stimulus for adaptation of the effect on living tissues, it must penetrate 1994; Trevisi et al., 1994; Gonçalo et al., skin to sunlight, less adaptation might be the skin. There is some evidence that 1995; Ang et al., 1998) and reviews expected to develop in individuals who this can occur (see p. 63 et seq.). (Dromgoole & Maibach, 1990; Gonzalez use sunscreens regularly. The adaptive & Gonzalez, 1996; Schauder & Ippen, responses include thickening of the epi- Human studies 1997). In the past, PABA and its esters dermis and transfer of melanin-contain- No published studies of toxic effects in were the most commonly reported ing granules to keratinocytes (tanning) humans were available to the Working contact and photoallergens in sun- (Fig. 44), which reduces the trans- Group. screens (Funk et ai., 1997), and this find- parency of the skin to UVA and UVB ing contributed to a reduction in their use (Fusaro et al., 1966; Olson et al., 1973). Contact sensitivity in sunscreens. The contact or photocon- Several reports showed that UVR- There are numerous reports of cases of tact allergen in sunscreens most induced injury, such as dermal connec- allergic reactions and photoreactivity to frequently cited today is benzophenone- tive tissue damage and sunburn cell for- sunscreens, but the prevalence of this 3, followed by dibenzoyl methanes. -
Octinoxate, Octisalate, Avobenzone, Ensulizole, Homosalate
TONYMOLY MAGIC FOOD MANGO MILD SUN BLOCK- octinoxate, octisalate, avobenzone, ensulizole, homosalate cream TONYMOLY CO.,LTD Disclaimer: Most OTC drugs are not reviewed and approved by FDA, however they may be marketed if they comply with applicable regulations and policies. FDA has not evaluated whether this product complies. ---------- ACTIVE INGREDIENT Active ingredients: Ethylhexyl Methoxycinnamate 6.9%, Ethylhexyl Salicylate 4.5%, Butyl Methoxydibenzoylmethane 3.5%, Phenylbenzimidazole Sulfonic Acid 3.5%, Homosalate 3.0% INACTIVE INGREDIENT Inactive ingredients: Water, Butylene Glycol, Alcohol Denat., Octocrylene, Phenethyl Benzoate, Aminomethyl Propanol, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Triceteareth-4 Phosphate, Glycol Stearate, Ammonium Acryloyldimethyltaurate/VP Copolymer, Carbomer, PEG-2 Stearate, Fragrance(Parfum), Phenoxyethanol, Glyceryl Caprylate, Caprylyl Glycol, Mangifera Indica (Mango) Seed Butter, Disodium EDTA, Citrus Limon (Lemon) Fruit Extract, Musa Sapientum (Banana) Fruit Extract, Propylene Glycol, 1,2-Hexanediol, Citrus Aurantium Dulcis (Orange) Fruit Extract, Mangifera Indica (Mango) Fruit Extract, Psidium Guajava Fruit Extract, Citrus Paradisi (Grapefruit) Fruit Extract, Cocos Nucifera (Coconut) Fruit Extract, Actinidia Chinensis (Kiwi) Fruit Extract, Carica Papaya (Papaya) Fruit Extract, Ethylhexylglycerin PURPOSE Purpose: Sunscreen WARNINGS Warnings: For external use only Do not use on damaged or broken skin Stop use and ask a doctor if irritation occurs Keep out of reach of children DESCRIPTION Uses: - helps prevent sunburn - If used as directed with other sun protection measures Directions: decreases the risk of skin cancer and early skin aging caused by the sun Directions: For sunscreen use: - apply liberally 15 minutes before sun exposure - use a water resistant sunscreen if swimming or sweating - reapply at least every 2 hours - Sun Protection Measures. Spending time in the sun increases your risk of skin cancer and early skin aging. -
Table 1 - Experimental and Predicted Physical-Chemical Parameters of the Most Recently Investigated UV-Absorbers
Table 1 - Experimental and predicted physical-chemical parameters of the most recently investigated UV-absorbers. INCI name (INN/XAN) Chemical structure Brand name Absorption Molecula LogP Water solubility Melting spectrum range r weight (mg/L) point (°C) (g/mol)4 diethylamino Uvinul® A Plus UVA1 5.7-6.21 <0.01 (20°C) 1 54; 314 hydroxybenzoyl hexyl 397.515 (dec.) 1 benzoate Butyl Eusolex® 9020, UVA 310.393 4.514 2.2 (25°C)4 83.54 methoxydibenzoylmetha Parsol® 1789 ne (avobenzone) 4-methylbenzylidene Eusolex® 6300 UVB 258.397 4.95 1.3 (20°C) 66–68 camphor (enzacamene) Parsol® 5000 Uvinul® MBC 95 Octocrylene Eusolex® OCR, UVB 361.485 6.783 0.00383 N/A (octocrilene) Parsol® 340, Uvinul® N539T, NeoHeliopan® 303 USP isoamyl p- Neo Heliopan® UVB 248.322 3.61 4.9 (25°C)1 N/A methoxycinnamate E1000 (amiloxate) Ethylhexyl triazone Uvinul® T150 UVB 823.092 > 7(20 °C) 6 < 0.001 (20.0 °C) 6 1296 Ethylhexyl Parsol® MCX, UVB 290.403 6.14 0.041 (24 °C and N/A methoxycinnamate Heliopan® New pH 7.1) 4 (octinoxate) Ethylhexyl dimethyl Escalol™ 507 UVB 277.4084 5.774 0.54 (25 °C) 4 N/A PABA (padimate-O) Arlatone 507 Eusolex 6007 benzophenone-3 Eusolex® 4360 UVA2+ UVB 228.247 3.72 3.7 (20°C) 2 62-652 (oxybenzone) bis-ethylhexyloxyphenol Tinosorb® S UVA1+UVB 627.826 12.61 <10-4 80.401 methoxyphenol triazine (bemotrizinol) Phenylbenzimidazole Eusolex® 232 UVA2+ UVB 274.2945 -1.1 (pH 5) > 30% (As sodium N/A sulfonic acid Parsol® HS -2.1 (pH 8)5 or (ensulizole) Neo Heliopan® triethanolammoniu Hydro m salt at 20°C) 5 1 (3) 2 (34) 3 (44) 4 Pubchem 5 SCCP/1056/06 Opinion on phenylbenzimidazole sulfonic acid and its salts 6 BASF safety data sheet Table 2 – In vitro studies for the assessment of skin permeation/penetration of sunscreens. -
Sun Protection, Sunscreens and Vitamin D
SunSun protection,protection, sunscreenssunscreens andand VitaminVitamin DD GPGP NationalNational ConferenceConference RotoruaRotorua EnergyEnergy EventsEvents CentreCentre JuneJune 20092009 Dr. Louise Reiche Dermatologist New Zealand Dermatological Society Incorporated MelanomaMelanoma SkinSkin cancercancer andand sunlightsunlight Exposure to UVR causes > 90% of skin cancers Skin cancer is commonest cancer in NZ >50,000 new cases per year ~300 deaths per year ~$33.4 NZ million per year International Agency for Research on Cancer. IARC Monographs on the evaluation of carcinogenic risks to humans. Solar ultraviolet radiation. Lyon: International Agency for Research on Cancer, 1992. Armstrong BK. How sun exposure causes skin cancer. In: Hill D, Elwood JM, English DR, Eds. Prevention of Skin Cancer. Dordrecht: Kluwer Academic Publishers, 2004. O’Dea D. The Costs of Skin Cancer to New Zealand. Wellington: Cancer Society of New Zealand, 2000. New Zealand Health Information Service. Cancer, New Registrations and Deaths. Wellington: New Zealand Health Information Service, 2004. MelanomaMelanoma 1842 new cases in 2002 328 directly attributable to severe sunburn (Sneyd and Cox 2006) Authors recommended, “to reduce burden of melanoma in NZ, need to prevent excessive sun exposure and (facilitate) early diagnosis” Whilst cancer overall is rare in adolescence, melanoma was commonest cancer MelanomaMelanoma NZ incidence and death rate among world highest 56.2/100,000 in European population of Auckland highest reported worldwide men -
New Technology Provides Cosmetically Elegant Photoprotection Zoe Diana Draelos, MD; Christian Oresajo; Margarita Yatskayer; Angelike Galdi; Isabelle Hansenne
COSMETIC CONSULTATION New Technology Provides Cosmetically Elegant Photoprotection Zoe Diana Draelos, MD; Christian Oresajo; Margarita Yatskayer; Angelike Galdi; Isabelle Hansenne he primary preventable cause of photoaging is United States, as there is no official rating system for exposure to UVA radiation. This wavelength UVA photoprotection yet. T emitted by the sun is present year round in all Ecamsule absorbs UVA radiation in the range of 320 to latitudes. Currently, the majority of sun-protective prod- 360 nm, but its peak absorbance occurs at 345 nm. It is ucts provide excellent UVB protection with minimal UVA typically combined with other organic sunscreen ingredi- protection. Although UVB protection is important in ents, such as avobenzone and octocrylene. Avobenzone, order to prevent sun damage to the skin from occurring, which is a photounstable photoprotectant, becomes UVA protection is equally important. New developments photostable when combined with octocrylene. These in raw material science have led to the manufacture of ingredients yield a photostable broad-spectrum sunscreen novel ingredients able to provide unprecedented photo- combination. However, the active sunscreen agents are protection COSin the UVA spectrum. DERMonly part of the formulation. Also important in sunscreen One of the most significant developments in cutaneous is the construction of the vehicle to deliver the photo- UVA protection was the discovery of ecamsule (Figure 1), protectants in an aesthetically pleasing manner, enticing also known as Mexoryl SX. Mexoryl SX, which has patients to wear the product. Sunscreens fail to be effec- the International Nomenclature of Cosmetic Ingredients tive if they remain in the bottle. name of terephthalylidene dicamphor sulfonic acid, is In order to evaluate the efficacy and tolerability of a water soluble. -
Sunscreen Faqs
Sunscreen FAQs What type of sunscreen should I use? There are two main types of sunscreen ingredients: physical sun blockers and chemical sunscreens. Physical sunscreens prevent ultraviolet light from reaching your skin, and contain either zinc oxide or titanium dioxide. Physical sunscreens protect against UVA and UVB damage. Physical sunscreens are preferred for patients with sensitive skin or children. Chemical sunscreens rely on an interaction between the sun and the chemical to protect your skin. Examples of such chemicals are avobenzone, octinoxate, homosalate, padimate O, and many others. Chemical sunscreens can protect against UVA, UVB, or both types of damage, depending on which ingredient is used. Read the label to ensure coverage for both UVA and UVB exposure. There are new ingredients being developed that take chemical sunscreens and stabilize them to prolong their activity (i.e., Helioplex, Mexoryl). Does the SPF really matter? In laboratory testing, there are minor differences between SPF 15 and SPF 30 or greater products. However, that data is based on using 1 oz. (30 gm.) of sunscreen for each full body application (the size of a shot glass). Most people use far less in real-life settings. For that reason, we recommend an SPF of at least 30. It is common to find good sunscreens with SPF ranging from 45-70. To maintain protection, reapply sunscreen every 1-3 hours, depending on sweating, water exposure, and sun intensity. Is sunscreen alone enough to protect my skin in the sun? In some cases, yes. However, if you are in the sun for longer periods on a regular basis (such as gardening, golfing, boating, sports), it may be better to add sun protective clothing or habits. -
FDA Proposes Sunscreen Regulation Changes February 2019
FDA Proposes Sunscreen Regulation Changes February 2019 The U.S. Food and Drug Administration (FDA) regulates sunscreens to ensure they meet safety and eectiveness standards. To improve the quality, safety, and eectiveness of sunscreens, FDA issued a proposed rule that describes updated proposed requirements for sunscreens. Given the recognized public health benets of sunscreen use, Americans should continue to use broad spectrum sunscreen with SPF 15 or higher with other sun protective measures as this important rulemaking eort moves forward. Highlights of FDA’s Proposals Sunscreen active ingredient safety and eectiveness Two ingredients (zinc oxide and titanium dioxide) are proposed to be safe and eective for sunscreen use and two (aminobenzoic acid (PABA) and trolamine salicylate) are 1 proposed as not safe and eective for sunscreen use. FDA proposes that it needs more safety information for the remaining 12 sunscreen ingredients (cinoxate, dioxybenzone, ensulizole, homosalate, meradimate, octinoxate, octisalate, octocrylene, padimate O, sulisobenzone, oxybenzone, avobenzone). New proposed sun protection factor Sunscreen dosage forms (SPF) and broad spectrum Sunscreen sprays, oils, lotions, creams, gels, butters, pastes, ointments, and sticks are requirements 2 proposed as safe and eective. FDA 3 • Raise the maximum proposed labeled SPF proposes that it needs more data for from SPF 50+ to SPF 60+ sunscreen powders. • Require any sunscreen SPF 15 or higher to be broad spectrum • Require for all broad spectrum products SPF 15 and above, as SPF increases, broad spectrum protection increases New proposed label requirements • Include alphabetical listing of active ingredients on the front panel • Require sunscreens with SPF below 15 to include “See Skin Cancer/Skin Aging alert” on the front panel 4 • Require font and placement changes to ensure SPF, broad spectrum, and water resistance statements stand out Sunscreen-insect repellent combination 5 products proposed not safe and eective www.fda.gov. -
Kroger Co Disclaimer: Most OTC Drugs Are Not Reviewed and Approved by FDA, However They May Be Marketed If They Comply with Applicable Regulations and Policies
SUNSCREEN- avobenzone, homosalate, octisalate, octocrylene, oxybenzone lotion The Kroger Co Disclaimer: Most OTC drugs are not reviewed and approved by FDA, however they may be marketed if they comply with applicable regulations and policies. FDA has not evaluated whether this product complies. ---------- Kroger 711 Active Ingredients Avobenzone 3% Homosalate 13% Octisalate 5% Octocrylene 7% Oxybenzone 4% Purpose Sunscreen Use helps prevent sunburn if used as directed with other sun protections measures (see Directions), decreases the rist of skin cancer and early skin aging caused by the sun Warnings For external use only Do not use on damaged or broken skin When using this product keep out of eyes. Rinse with water to remove Stop use and ask a doctor if rash occurs Keep out of reach of children if swallowed, get medical help or contact a Poison Control Center right away Directions apply liberally 15 minutes before sun exposure reapply: after 80 minutes of swimming or sweating immediately after towel drying at least every 2 hours Sun Protection Measures. Spending time in the sun increases your risk of skin cancer and early skin aging. To decrease this risk use a reqularly use a sunscreen with a Broad Spectrum SPF value of 15 or higher and other sun protection measures including: limit time in the sun, especially from 10 a.m. - 2 p.m. wear long-sleeved shirts, pants, hats and sunglasses children under 6 months of age: Ask a doctor Other Information Protect the product from excessive heat and direct sun Inactive ingredients water, sorbitol, triethanolamine, VP/eicosene copolymer, stearic acid, sorbitan isostearate, aluminum starch octenylsuccinate, benzyl alcohol, dimethicone, tocopheryl, chlorphenesin, polyglyceryl-3 distearate, fragrance, carbomer, disodium EDTA Questions or comments? 1-800-632-6900 Adverse Reaction DISTRIBUTED BY THE KROGER CO. -
Chemical UVR Absorbers
Chemical UVR Absorbers The names given in bold and used Diisopropyl methyl cinnamate Glyceryl ethyihexanoate dimethoxy- throughout this handbook are those of Empirical formula: cinnamate the International Nomenclature of C 6H22O2 Chemical names. Cosmetic Ingredients. Glyceryl octanoate dimethoxycinnamate; Chemical names: 2-propenoic acid, 3-(4-methoxyphenyl)-, 2-Propenoic acid, 3-12,4bis(1 diester with 1 ,3-dihydroxy-2-(2-ethyl-1 - methylethyphenyl-methyl ester; 2,5- oxohexyl)oxypropane diisopropyl methyl cinnamate _ lsoamyl-para-methoxycinnamate Ethyihexyl methoxycinnamate Empirical formula: Empirical formula: C151-12003 C 8H26O3 Chemical names: Cinnamates Chemical names: Amyl4-methoxycinnamate; isopentyl-4- 2-Ethylhexyl-4-methoxycin nam ate; methoxycinnamate; isopenlyl-para- Cinoxate 2-ethyl-hexyl-para-methoxycinnamate; methoxy-cinnamate; 3-(4-methoxyphenyl)- Empirical formula: para-methoxycinnamic acid, 2-ethylhexyl 2-propenoic acid, isopentyl ester Ci4HieO4 ester; 3-(4-methoxyphenyl)-2-propenoic acid, 2-ethylhexyl ester; octinoxate; octyl Trade names: Chemical names: methoxycinnamate; 2-propenoic acid, 3- Neo Heliopan type E 1000; Solarum AMC 2- Ethoxyothyl-para-methoxyci n nam ate; (4-methoxyphenyl)-2-ethylhexyl ester 2-propenoic acid, 3-(4-methoxyphery- para-A minobenzoic acids (PA BAs) 2-ethoxyethyl ester; 2-ethoxyethyl-4- Trade names: methoxycinnamate AEC Octyl Methoxycinnamate; Escalol Amyl dimethyl FABA 557; Eusolex 2292; Heliosol 3; Empirical formula: Trade names: Jeescreen OMC; Katoscreen OMC; Nec C14H21 NO2 Giv Tan F; Phiasol -
Les Filtres UV Dans Les Cosmétiques : Une Présence Obligatoire ?
UNIVERSITÉ DE NANTES UFR SCIENCES PHARMACEUTIQUES ET BIOLOGIQUES ____________________________________________________________________________ ANNÉE 2015 N° THÈSE pour le DIPLÔME D’ÉTAT DE DOCTEUR EN PHARMACIE par Anouk POCHAT Présentée et soutenue publiquement le 14 décembre 2015 Les filtres UV dans les cosmétiques : une présence obligatoire ? Président : Mme Laurence Coiffard, Professeur des universités, Laboratoire de Pharmacie industrielle et Cosmétologie Membres du jury : Directeur de thèse : Mme Céline Couteau, Maître de conférences, HDR, Laboratoire de Pharmacie industrielle et Cosmétologie Mme Françoise PEIGNE , Maitre de conférences à la retraite Page 1 Remerciements A mon président de jury, Professeur à la faculté des sciences pharmaceutiques de Nantes J’exprime mes profonds remerciements à Mme Coiffard, pour m’avoir fait l’honneur de présider mon jury de thèse. A mon directeur de thèse, Maître de conférences à la faculté de Pharmacie de Nantes Je remercie Mme Couteau pour m’avoir conseillée et guidée tout au long de mon travail. A Madame Françoise PEIGNE, Docteur en Pharmacie, Je remercie Mme Peigné d’avoir accepté d’assister à ma soutenance. A ma mère, Je te remercie de m’avoir soutenue et encouragée tout au long de mes études. A mon conjoint, Je te remercie pour ta patience, ton écoute et ton soutien. A mes frères, Je vous remercie pour vos encouragements Page 2 I.Introduction Une exposition prolongée aux UVA et aux UVB peut avoir de graves conséquences sur la santé comme, par exemple, la survenue de cancers cutanés (Aubin F., 2001). Les filtres UV permettent d’assurer une protection dans les domaines UVA et/ou UVB. On en trouve dans les produits de protection solaire que le public utilise ponctuellement lors des expositions prolongées au soleil.