Accueil
Catégories
> Conservateurs (chimie)
Conservateurs (chimie)Voir aussi
|
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
Randomized comparative double-blind study assessing the difference between topically applied microbiome supporting skincare versus conventional skincare on the facial microbiome in correlation to biophysical skin parameters / Emilia Santamaria in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 45, N° 1 (02/2023)
[article]
Titre : Randomized comparative double-blind study assessing the difference between topically applied microbiome supporting skincare versus conventional skincare on the facial microbiome in correlation to biophysical skin parameters Type de document : document électronique Auteurs : Emilia Santamaria, Auteur ; Ulf Akerström, Auteur ; Nicolas Berger-Picard, Auteur ; Sylvain Lataste, Auteur ; Johanna M. Gillbro, Auteur Année de publication : 2023 Article en page(s) : p. 83-94 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Conservateurs (chimie)
Dermo-cosmétologie
Diversité bactérienne
Étude randomisée
Etudes comparatives
Evaluation
Microbiome -- Analyse
Microbiome cutané
Peau -- Soins et hygiène
Séquençage des acides nucléiquesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : - Background : There are trillions of live bacteria, of around 1000 different species, living in human skin which are considered essential for the balance and barrier function of the skin. The gut microbiome has been a subject of extensive research and evidence shows that the gut flora is affected by preservatives and processed foods. In conventional skincare, preservatives are used, and this raises the question of how it affects the skin flora and its balance.
- Methods : A randomized double-blind study on 14 healthy volunteers ages 23–45 years old were advised to use microbiome-supporting (MS) products on one cheek and benchmark (BM) products on the other cheek daily for 3 weeks. To investigate how the skin was affected, the skin microbiome was analysed using 16 S rRNA sequencing and biophysical parameters were assessed using an Antera 3D camera. Measurements were performed before and after the 3 weeks of using the products.
- Results : The use of MS products for 3 weeks significantly increased the total number of reads mapped to unique bacterial species (p < 0.05) and the number of different unique species (p < 0.05). In addition, the use of MS products significantly reduced redness (p < 0.05) and improved skin texture (p < 0.01). The use of BM products showed no significant difference in any of the parameters except improved skin texture (p < 0.05). Additionally, the MS side showed a significantly improved diversity (p < 0.05) compared with the BM side. The four major phyla found were, similarly to previous findings by others, Actinobacteria, Firmicutes, Proteobacteria and Bacteroidetes. Some of the most prevalent species were Cutibacterium acnes, Staphylococcus epidermidis and Pseudonomas aeruginosa.
- Conclusion : The findings of this study showed significant improvements in the microbiome and biophysical parameters within 3 weeks of using MS skincare alone, while BM skincare only gave significantly improved skin roughness. Importantly, the MS side gave a significantly improved bacterial Shannon diversity (p < 0.05) compared with the BM side. Regarding the biophysical parameters, the MS skincare gave significant improvements in several parameters compared with baseline. However, they were not yet significant when compared to using BM skincare and therefore a larger study population will be needed. Importantly, this is the first study to investigate how preservatives affect the facial microbiome in vivo and has raised a need for further investigation. These results together with further studies can lead to innovations within the cosmetic industry that promote healthier skin.Note de contenu : - MATERIALS AND METHODS : Subject population - Study design - Test products - Evaluation of the skin microbiome - Evaluation of skin biophysical parameters by image analysis - Statistical analysis
- RESULTS : Microbiome sequencing - Biophysical parameters (Antera 3D)
- Table 1 : Benchmark cleanser ingredients (according to INCI)
- Table 2 : Microbiome-supporting cleanser ingredients (according to INCI)
- Table 3 : Benchmark cream ingredients (according to INCI)
- Table 4 : Microbiome-supporting cream ingredients (according to INCI)DOI : https://doi.org/10.1111/ics.12826 En ligne : https://drive.google.com/file/d/1HoA0q4V_OEyScOL-9dN7d7JkwmemTgcz/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38822
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 45, N° 1 (02/2023) . - p. 83-94[article]Raspberry multifunctional for sustainable benefits / Matthias Hentz in GLOBAL PERSONAL CARE, Vol. 24, N° 3 (03/2023)
[article]
Titre : Raspberry multifunctional for sustainable benefits Type de document : texte imprimé Auteurs : Matthias Hentz, Auteur Année de publication : 2023 Article en page(s) : p. 53-56 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anti-inflammatoires
Antienzymes
Antimicrobiens
Antioxydants
Conservateurs (chimie)
Conservateurs (chimie) -- Suppression ou remplacement
Cosmétiques
Framboise et constituants
Matériaux -- Propriétés fonctionnelles
Protection contre la peroxydationIndex. décimale : 668.5 Parfums et cosmétiques Résumé : This article concentrates on Ashland’s raspberry multifunctional ingredient, which enables formulators to implement a sound preservation strategy and to substantiate secondary claims based on consistent in-depth analysis.
Perhaps one of the most impactful recent changes in the personal care industry is the need for a sound strategy for the use of preservatives that considers regulations, consumer demand and cost-effectiveness for a more sustainable and eco-aware market.
Ever more effective preservatives must give way, creating a strong need for powerful alternatives. A challenge that holds opportunities. Contemporary strategies lean towards multifunctionals that are more costly but promise much more than preservatives. Molecules with multiple functions help formulators to achieve additional claims enabling lesser ingredients and pamper overall value for money.
This article concentrates on an innovative technology that enables formulators to implement a sound preservation strategy and to substantiate secondary claims based on consistent in-depth analysis.Note de contenu : - MULTIFUNCTIONALS : THE NEW NORMAL
- MATERIALS AND METHODS : Antimicrobial activity - Antioxidation - Peroxidation protection - Enzymes inhibition - Anti-inflammation
- RESULTS AND DISCUSSION : Antimicrobial activityAntioxidation - DPPH assay (α, α-diphenyl-β-picrylhydrazyl) - Ferric reducing antioxidant power (FRAP) - Peroxidation protection - Enzyme inhibition - Anti-inflammationEn ligne : https://drive.google.com/file/d/1sIl-IbELTsTTy98WOe2ekJ6djyLsMR7B/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38981
in GLOBAL PERSONAL CARE > Vol. 24, N° 3 (03/2023) . - p. 53-56[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 23899 - Périodique Bibliothèque principale Documentaires Disponible Recherche et validation d'un système conservateur efficace pour deux produits cosmétiques / Mélinda Gravelle / 1999
Titre : Recherche et validation d'un système conservateur efficace pour deux produits cosmétiques : une crème et un shampooing Type de document : texte imprimé Auteurs : Mélinda Gravelle, Auteur ; Olivier Castel, Directeur de thèse ; Université de Poitiers (Poitiers), Organisme de soutenance Année de publication : 1999 Importance : 79 p. Présentation : ill. Format : 30 cm Note générale : Bibliogr. Catégories : Allergies
Conservateurs (chimie)
Cosmétiques
Cosmétiques -- Additifs
Cosmétiques -- Conservation
Dermatite de contact
shampooings
Thèses et écrits académiquesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Le Kathon® CG (Cosmetic Grade) est un dérivé thiazinique fréquemment utilisé comme agent conservateur dans les produits cosmétiques. A la fin d années 1980, les scientifiques commencent à s'intéresser à son pouvoir allergisant qui semble toucher un nombre croissant de sujets même à des concentrations relativement basses (15 ppm). La fréquence des allergies cutanées de contact dont il est responsable varie énormément d'un pays à un autre, et c'est en Europe que la majorité des cas est recensée.
De nos jours, la tendance des industriels de la cosmétologie est de supprimer ce conservateur de leurs préparations cosmétiques.
Ainsi, en collaboration avec les Laboratoires RIVADIS, nous avons choisi de remplacer le Kathon® CG, contenu dans une crème et un shampooing, par d'autres substances conservatrices mieux tolérées. Pour cela, nous avons testé plusieurs conservateurs en milieu aqueux dans un premier temps, puis sur les deux produits cosmétiques à l'étude.
La méthode pratiquée est celle du "Test d'efficacité de la conservation antimicrobienne" recommandée par la Pharmacopée Française.Thèse : Thèse de Pharmacie : Poitiers : 1999 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29800 Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 1525 TH/1999/GRA Thèse, mémoire, etc... Bibliothèque principale Documentaires Disponible Regulations necessitate new preservation methods / Sangita Singh in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 211, N° 4668 (04/2021)
[article]
Titre : Regulations necessitate new preservation methods Type de document : texte imprimé Auteurs : Sangita Singh, Auteur Année de publication : 2021 Article en page(s) : p. 52-53 Langues : Anglais (eng) Catégories : Antimicrobiens
Conservateurs (chimie)
Conservateurs (chimie) -- Suppression ou remplacement
Peinture -- Conservation
Pyrithione de zinc
Revêtements (produits chimiques):Peinture (produits chimiques)Index. décimale : 667.9 Revêtements et enduits Résumé : The authors discusses the reclassification of zinc pyrithione and the alternatives available.
The EU's legislation for biocidal products (Biocidal Products Regulation BPR, (EU) 528/2012) is constantly changing and developing.
Ever since the BPR became mandatory in September 2013, the different implementations and delegations have made the approval process very challenging for biocide formulators.
Tightening regulations with regard to human health and the environment, however, have led to stagnation in the current development of new biocide chemistries.Note de contenu : - From invention to innovation
- In-can preservation
- Trends in the market : Soft preservatives in combination with good plant hygiene
- Hlistic approach to preservation
- Table 1 : The timeframe for a new biocidal active from research to approval by the European authorities is estimated to be seven to 10 years and approval costs about 5-10ME
- Table 2 : The 15 ATP (Adaptation to Technical Progress) of the EU CLP Regulation was published in August 2020 and contains a reclassification of zinc pyrithione
- Fig. 1 : Safe (evaluated) preservatives or biocides are mandatory for the paint industry - now and in the future
- Fig. 2 : Holistic approach to preservationEn ligne : https://drive.google.com/file/d/1S6VS2DboLAh3f3czIEFLYhiFioqxcYrN/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36765
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 211, N° 4668 (04/2021) . - p. 52-53[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 23121 - Périodique Bibliothèque principale Documentaires Disponible Restrictions on three preservatives in 2015 / Chris Smith in PERSONAL CARE EUROPE, Vol. 7, N° 6 (11/2014)
[article]
Titre : Restrictions on three preservatives in 2015 Type de document : texte imprimé Auteurs : Chris Smith, Auteur Année de publication : 2014 Article en page(s) : p. 36-37 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Conservateurs (chimie)
Consommateurs -- Protection
Industrie cosmétique -- Législation -- Pays de l'Union Européenne
Isothiazolinone
ParabènesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : A press release was issued by the European Commission in Brussels on 26 September 2014 restricting the use of three preservatives in cosmetic products. The commission stated the restrictions: “further strengthened the protection of consumers, in particular babies and young children.” New limitations and restrictions have been placed on propylparaben, butylparaben and the mixture of methylchloroisothioazolinone (and) methylisothiazolinone (MCl/Ml) in cosmetics products. In explaining the importance of the review and decision, Neven Mimica, European Commissioner for Consumer Policy stated: "We have shown once again that the safety of consumers is paramount in every decision we take. Preservatives in cosmetics serve a valuable function ensuring that the products we use on a daily basis are free from pathogens. We need however to ensure that the preservatives guarantee the maximum degree of protection. With these measures consumers can be reassured that their cosmetics are safe". The Commission took the decision following risk assessments carried out by the independent Scientific Committee on Consumer Safety (SCCS). This advisory body carried out a careful assessment of the substances before recommending their restriction or ban to the Commission for consideration. Note de contenu : - PARABENS : 1. New restrictions - 2. Brief background
- METHYLCHLOROISOTHIAZOLINONE (AND) METHYLISOTHIAZOLINONE MIXTURE : 1. New restrictions - 2. Brief backgroundEn ligne : https://drive.google.com/file/d/1b2zO6ZCPVus61qb3T2E2nVVWxRYuHFeH/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22265
in PERSONAL CARE EUROPE > Vol. 7, N° 6 (11/2014) . - p. 36-37[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 16618 - Périodique Bibliothèque principale Documentaires Disponible PermalinkSelf-preserving personal care products / Meenakshi Narayanan in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 39, N° 3 (06/2017)
PermalinkSolutions de conservation : récapitulatif des derniers lancements (liste non exhaustive) in EXPRESSION COSMETIQUE, N° 41 (09-10/2016)
PermalinkSorbate : nature identical, non-sensitizing, label friendly preservatives for home care detergent products / Sylvia Nefkens in SOFW JOURNAL, Vol. 145, N° 4 (04/2019)
PermalinkThe cosmetic preservation (r)evolution / Barbara Olioso in GLOBAL PERSONAL CARE, Vol. 22, N° 7 (07/2021)
PermalinkThe dream to be green : natural cosmetics explained / Kevin Roden in PERSONAL CARE EUROPE, Vol. 5, N° 1 (02/2012)
PermalinkThe formulator's guide to safe cosmetic preservation / Alexander Thiemann in PERSONAL CARE EUROPE, Vol. 7, N° 6 (11/2014)
PermalinkThe impact of the various chemical and physical factors on the degradation rate of bronopol / M. Matczuk in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 34, N° 5 (10/2012)
PermalinkThe OCX - efficacy enhancing system raises phenoxyethanol to a new level / Karin Stoffels in SOFW JOURNAL, Vol. 145, N° 5 (05/2019)
PermalinkThe phantom menace / Wolfgang Lindner in ADHESIVE TECHNOLOGY, Vol. 16, N° 3 (09/1999)
PermalinkThe preservation of wet wipes / Kevin Roden in PERSONAL CARE EUROPE, Vol. 5, N° 5 (11/2012)
PermalinkUnderstanding natural ingredients and mildness / Barbara Olioso in PERSONAL CARE EUROPE, Vol. 14, N° 2 (04/2020)
PermalinkUnderstanding the need for preservation in personal care / Laura M. Szymczak-Frye in PERSONAL CARE EUROPE, Vol. 6, N° 5 (11/2013)
PermalinkVanillin : a promising preservation booster / Andrea Mitarotonda in PERSONAL CARE EUROPE, Vol. 8, N° 3 (04/2015)
PermalinkWhat lies within : unfolding wet wipe preservation / Naama Eylon in GLOBAL PERSONAL CARE, Vol. 23, N° 2 (02/2022)
Permalink