SKIN CARE INSTANT REPORTS - Lexiconlexicon.vevy.com/PDF/Lexicon2008Vol1.pdf · SKIN CARE INSTANT...

4
SKIN CARE INSTANT REPORTS VEVY EUROPE VEVY EUROPE VEVY EUROPE VEVY EUROPE Nr 1 November 2008 Volume XXIII International information on dermo-pharmaceutics cosmetics and toiletries Publisher Publisher Publisher Publisher: VEVY EUROPE, via Semeria 16 A , 16131 Genova, Italy. Managing Editor Managing Editor Managing Editor Managing Editor: Giorgio Rialdi. Dep- Dep- Dep- Dep- uty Editor uty Editor uty Editor uty Editor: Raffaele Rialdi. Editorial and Advisory Editorial and Advisory Editorial and Advisory Editorial and Advisory Boards Boards Boards Boards: Skin Applied Sciences Associates (SASA); Copyright Copyright Copyright Copyright© 1984-2008 by Vevy Europe S.p.A. All rights reserved. Texts are original and registered; no part may be reproduced in any manner or by any means without written permission from the pub- lisher. Mailing Mailing Mailing Mailing: registered for delivery by post, free of charge to branch specialists. Circulation Circulation Circulation Circulation: 13'500 cop- ies. Document Type Document Type Document Type Document Type: Trade/Scholarly Publica- tion. Printed in Italy. Publication legally protected by the Literary, Artistic and Scientific bureau of the Italian Presidential Council of Ministers. Associato all’Unione Stampa Periodica Italiana Printed by Morino Grafica Scrl — Genova, Italy Autor. Tribunale di Genova 31/84, del 18/6/84. Iscrizione al Registro Operatori di Comunicazione (ROC) al n. 6411 del 10.12.01. Spedizione in abb. Postale Poliglicoleum Dermo & Cosmetic Grade (DCG) powerful solubilizer for the cosmetic industry Oil substances (such as perfumes, aromas, vita- mins, drugs) usually are solubilized in clear wa- ter or water-alcohol or water-glycerol -based forms by thorough subdivision into micelles using high HLB surfactants (16-20). This proc- ess is also called pseudosolution and is charac- terized by the fact that small percentages of the non solubilizing lipid body are presubdivided into micelles at ratios ranging between 1:15 and 1:2 (solubilizing oil) according to the kind of lipid or surfactant, and subsequent addition of a large amount of water; thus obtaining a clear solution (a typical example in cosmetics is the preparation of a tonic or hair lotion). Surfactants used as solubilizers have char- acteristics such as to place them among pri- mary surfactants as well as among emulsi- fiers. Foaming agents have a structure with a rather weak lipophilic fraction but with a rather strong hydro- philic fraction. Con- versely the structure of emulsifying agents have a better lipo- philic/hydrophilic bal- ance. Solubilizing agents may have intermediate characteristics: short fatty chain and medium strength hydrophile fraction or a longer fatty chain with double bonds and stronger hydro- phile fraction. Highly purified, odourless Poliglicoleum (Vevy codex 02.1150) is a solubilizing agent belonging to this latter group, i.e. to the class of ethoxy- lated fatty alcohols. It is a versatile, highly effective product per- fectly tolerable even with respect to similar products, and it is characterized by a smaller © 2008 by Raffaele Rialdi. Red Sea, Egypt.

Transcript of SKIN CARE INSTANT REPORTS - Lexiconlexicon.vevy.com/PDF/Lexicon2008Vol1.pdf · SKIN CARE INSTANT...

Page 1: SKIN CARE INSTANT REPORTS - Lexiconlexicon.vevy.com/PDF/Lexicon2008Vol1.pdf · SKIN CARE INSTANT REPORTS ... Document TypeDocument TypeDocument Type: Trade/Scholarly Publica-tion.

SKIN CARE INSTANT REPORTS

VEVY EUROPEVEVY EUROPEVEVY EUROPEVEVY EUROPE Nr 1 November 2008 Volume XXIII

International information on dermo-pharmaceutics cosmetics and toiletries PublisherPublisherPublisherPublisher: VEVY EUROPE, via Semeria 16A, 16131 Genova, Italy. Managing EditorManaging EditorManaging EditorManaging Editor: Giorgio Rialdi. Dep-Dep-Dep-Dep-uty Editoruty Editoruty Editoruty Editor: Raffaele Rialdi. Editorial and Advisory Editorial and Advisory Editorial and Advisory Editorial and Advisory BoardsBoardsBoardsBoards: Skin Applied Sciences Associates (SASA); CopyrightCopyrightCopyrightCopyright© 1984-2008 by Vevy Europe S.p.A. All rights reserved. Texts are original and registered; no part may be reproduced in any manner or by any

means without written permission from the pub-lisher. MailingMailingMailingMailing: registered for delivery by post, free of charge to branch specialists. CirculationCirculationCirculationCirculation: 13'500 cop-ies. Document TypeDocument TypeDocument TypeDocument Type: Trade/Scholarly Publica-tion. Printed in Italy. Publication legally protected by the Literary, Artistic and Scientific bureau of the Italian Presidential Council of Ministers.

Associato all’Unione Stampa Periodica Italiana

Printed by Morino Grafica Scrl — Genova, Italy

Autor. Tribunale di Genova 31/84, del 18/6/84. Iscrizione al Registro Operatori di Comunicazione (ROC) al n. 6411 del 10.12.01. Spedizione in abb. Postale

Poliglicoleum Dermo & Cosmetic Grade (DCG)

powerful solubilizer for the cosmetic industry

Oil substances (such as perfumes, aromas, vita-mins, drugs) usually are solubilized in clear wa-ter or water-alcohol or water-glycerol -based forms by thorough subdivision into micelles using high HLB surfactants (16-20). This proc-ess is also called pseudosolution and is charac-terized by the fact that small percentages of the non solubilizing lipid body are presubdivided into micelles at ratios ranging between 1:15 and 1:2 (solubilizing oil) according to the kind of

lipid or surfactant, and subsequent addition of a large amount of water; thus obtaining a clear solution (a typical example in cosmetics is the preparation of a tonic or hair lotion). Surfactants used as solubilizers have char-acteristics such as to place them among pri-mary surfactants as well as among emulsi-fiers. Foaming agents have a structure with a rather weak lipophilic fraction but with a rather strong hydro-philic fraction. Con-versely the structure of emulsifying agents have a better lipo-philic/hydrophilic bal-

ance. Solubilizing agents may have intermediate characteristics: short fatty chain and medium strength hydrophile fraction or a longer fatty chain with double bonds and stronger hydro-phile fraction. Highly purified, odourless Poliglicoleum (Vevy codex 02.1150) is a solubilizing agent belonging to this latter group, i.e. to the class of ethoxy-lated fatty alcohols. It is a versatile, highly effective product per-fectly tolerable even with respect to similar products, and it is characterized by a smaller

© 2008 by Raffaele Rialdi. Red Sea, Egypt.

Page 2: SKIN CARE INSTANT REPORTS - Lexiconlexicon.vevy.com/PDF/Lexicon2008Vol1.pdf · SKIN CARE INSTANT REPORTS ... Document TypeDocument TypeDocument Type: Trade/Scholarly Publica-tion.

fume, in which strong polar substances are pre-vailing is easily solubilized in water whereas, less Poliglicoleum is needed when a strongly cosolvent such as ethanol is used. Lavender and mint based perfumes can well be solubi-lized in water and in this case too the Poligli-coleum content can be reduced when adding alcohol. Quite different results are obtained with Co-logne and lemon based perfumes, which are character­ized by non polar or weak polar sub-stances requiring a greater solubilizer amount even in presence of a cosolvent. Experiments with chemically defined sub-stances confirm the data obtained from tests on perfumes. Linalool and menthol, which are present in rose and menthol compounds, can easily be solubilized. On the other hand isoeugenol, linalyl acetate and citral, having a weak polarity, call for a higher Poliglicoleum content. There can be no doubt that the results we ob-tained are confirming the importance of Poliglicoleum for the formulation of cosmetic products because of its excellent solubilization properties which allow for doses three times smaller than the normal dose and because of its above mentioned harmlessness. Poliglicoleum: efficace

solubilizzante per l’industria

cosmetica La solubilizzazione di sostanze oleose (profumi, a-romi, vitamine, farmaci, etc.) in forme limpide a ba-se acquosa, idroalcolica od idroglicerica si ottiene

solitamente per mi-cellazione grazie al-l'impiego di sostanze tensioattive ad alto HLB (16-20). Questo procedimento viene anche definito “pseu-dosoluzione” ed è ca-ratterizzato dalla pre-micellazione di picco-le percentuali del cor-po lipidico non solu-bilizzante, con rap-porti che possono va-riare da 1:15 a 1:2 (olio solubilizzante) a seconda del tipo di li-pide e di tensioattivo, e successiva addizione di un'elevata quantità d'acqua con l'otteni-mento di una soluzio-ne limpida (tipico e-sempio cosmetico è la preparazione di un to-nico o di una lozione per capelli).

foam volume compared to other components of the same category. A systematic procedure was adopted to assess the properties of Poliglicoleum using: 1. Perfumed compounds with different aromas (rose, lavender, mint, lemon, Cologne) 2. Chemically defined odorous substances (linalool, menthol, isoeugenol, citral and linalyl acetate) Each solubilization test was performed in: a. Demineralized water b. Hydroalcoholic solution (20% ethanol) c. Hydroalcoholic solution (25% ethanol) d. Hydroalcoholic solution (30% ethanol) In many cases solubilization ratios were 1:1, 1:2, 1:3 (oil: solubilizing agent) until a clear so-lution was obtained even though, as we will see, higher ratios were needed in some cases. Solubilizers and perfume/odorous substance are premixed together by stirring; then pre-heated water (40ºC) or the hydroalcoholic so-lution are added. The solution is stirred for 3 minutes and checked for its cloudy/opalescent/clear appearance. Each clear or opalescent com-plex is kept at 15ºC for a week before re-examination. Opalescent/opaque solutions are then rejected and new tests are made with a higher solubilizer content. However, if the so-lutions are perfectly clear, new tests are made with a lower Poliglicoleum content provided they can ensure an appropriate organoleptic ap-pearance. Results showed that the solubilization degree depends on perfume polarity. The “rose” per-

Nr 1 (2008)

VEVY EUROPEVEVY EUROPEVEVY EUROPEVEVY EUROPE

SKIN CARE INSTANT REPORTS

2

© 2007 by Michele Ferroni. Hoggar Desert, Algery.

Page 3: SKIN CARE INSTANT REPORTS - Lexiconlexicon.vevy.com/PDF/Lexicon2008Vol1.pdf · SKIN CARE INSTANT REPORTS ... Document TypeDocument TypeDocument Type: Trade/Scholarly Publica-tion.

I tensioattivi utilizzati come solubilizzanti hanno ca-ratteristiche che li fanno collocare da un lato fra i tensioattivi schiumogeni primari, dall'altro fra gli e-mulsionanti. Infatti gli schiumogeni presentano una struttura che comprende una frazione lipofila non molto accentuata, mentre la frazione idrofila è più spiccata. Al contrario gli emulsionanti posseggono una struttura avente un maggiore equilibrio fra parte lipofila ed idrofila. I solubilizzanti invece possono presentarsi con caratteristiche intermedie: una corta catena grassa ed una frazione idrofila di media forza, oppure una catena grassa più lunga e comprendente doppi legami accoppiata ad una frazione idrofila op-portunamente accentuata al fine di ottenere una maggiore capacità solubilizzante ed una schiumoge-nesi insignificante. Il Poliglicoleum, altamente purificato ed inodore, è un solubilizzante appartenente a quest'ultimo tipo di composti. È un prodotto versatile, di sicura efficacia e di provata innocuità. Per valutare le sue proprietà di elevato potere solubilizzante è stato approntato un lavoro sistematico utilizzando: 1. compound profumati aventi note diverse (rosa, la-vanda, menta, limone e colonia), 2. corpi odorosi chimicamente definiti (linalolo, mentolo, isoeugenolo, citrale ed acetato di linalile). Ogni prova di solubilizzazione è stata eseguita in: a. acqua demineralizzata, b. soluzione idroalcolica (etanolo 20%), c. soluzione idroalcolica (etanolo 25%), d. soluzione idroalcolica (etanolo 30%). I rapporti di solubilizzazione studiati sono stati in genere 1:1, 1:2, 1:3 (composto lipofilo: solubiliz­zante), fino ad ottenere una soluzione limpida, an-che se, come vedremo, in alcuni casi sono stati ne-cessari dosaggi superiori. Operando sotto agitatore, vengono premiscelati so-lubilizzante e profumo/corpo odoroso; si addiziona quindi l'acqua preriscaldata a 40ºC oppure la solu-

zione idroalcolica. Si continua ad agitare la soluzio-ne per 3 minuti, dopo di che si rileva l'aspetto opa-co, opalescente o limpido della soluzione. Ogni si-stema, sia limpido sia opalescente, viene mantenuto a 15ºC per una settimana prima di essere riesamina-to. Si scartano le prove non limpide per le quali si procede ad effettuare prove con percentuale mag-giore di solubilizzante; nei casi di limpidezza per-fetta si ricercano invece eventuali percentuali infe-riori di Poliglicoleum che siano già in grado di ga-rantire un adeguato aspetto organolettico. I risultati hanno dimostrato come il grado di solubi-lizzazione dipenda direttamente dalla polarità dei profumi. Infatti il profumo a nota “rosa”, in cui prevalgono i composti molto polari, è di facile solu-bilizzazione già in ambiente acquoso, mentre con la presenza di un cosolvente fortemente polare come l'etanolo notiamo un'ulteriore decisa diminuzione della percentuale di Poliglicoleum necessaria. I pro-fumi a nota “lavanda” e “menta” risultano di buona solubilizzazione in acqua ed anche in questo caso addizionando alcool diminuisce la quota di Poligli-coleum. Risultati differenti si hanno invece con le note “colonia” e “limone” caratterizzate da un elevato contenuto in corpi apolari o poco polari che richie-dono una maggiore quantità di solubilizzante, an-che in presenza di cosolvente. Le sperimentazioni con sostanze chimicamente de-finite confermano i dati ottenuti con i profumi. In-fatti linalolo e mentolo, presenti nelle composizioni “rosa” e “mentolo”, sono facilmente solubilizzati. Al contrario isoeugenolo, acetato di linalile e citrale, essendo poco polari, richiedono anch'essi una mag-giore percentuale di Poliglicoleum. Senza dubbio i risultati ottenuti confermano l'im-portanza del Poliglicoleum nella formulazione di cosmetici in relazione alle sue eccellenti capacità so-lubilizzanti, che consentono l'impiego di dosi anche 3 volte inferiori rispetto alla norma, ed alla già citata innocuità.

Nr 1 (2008)

VEVY EUROPEVEVY EUROPEVEVY EUROPEVEVY EUROPE

SKIN CARE INSTANT REPORTS

3

IFSCC 2008 — Barcelona October 6-9, 2008. Vevy Europe presented:

• Iodotrat® (vevy codex 18.0364):

stable iodic amine, active and

safe with local action for

cellulitis treatment.

• Cetacene® (vevy codex 03.1350):

multifunctional waxed

excipient: dispersing,

homogenizing, plasticizing.

• ACS-AntiCytoStressor®

(vevy codex 13.4566): physiological

bioregulator antagonist of

idiopathic cutaneous stress.

Ask for sample and literature

Page 4: SKIN CARE INSTANT REPORTS - Lexiconlexicon.vevy.com/PDF/Lexicon2008Vol1.pdf · SKIN CARE INSTANT REPORTS ... Document TypeDocument TypeDocument Type: Trade/Scholarly Publica-tion.

Nr 1 (2008)

VEVY EUROPEVEVY EUROPEVEVY EUROPEVEVY EUROPE

SKIN CARE INSTANT REPORTS

4

Osmopherine (female copuline) and Osmopherone (male copuline)

The olfactive ingredient is an important instrument for the orientation of our social, sexual and individual behaviour. A certain proportion of adults is able to recognize its own sexual partner, or the sex of other people, by the smell of the clothes they are wearing (Eibl-Eibesfeldt, I.). Certain distinct pheromones render both men and women receptive to contact, while other sexual pheromones encourage contact from women only (Eibl-Eibesfeldt, I.). Human smells constitute signals of a sti­mu­lating nature (Schleidt, W. M.) which in some cases attract and in other repel. They are camouflaged by deodorants which, in particular, eliminate the differences between sexes (Schleidt, W.M.); this repre-sents a strategy of mimicry (Eibl-Eibesfeldt, I.) which, in final analysis, could be considered an error of today's culture of appearance, harmful to natural interpersonal communications. The use of perfumes is intended to bring out per-sonal odour in a less disagreeable manner than it would have in its own biological state, but it is just as true that the biological signal of availability is thus destroyed, unless it is reconstructed by selected pheromonic copulines. In the composition of both male and female deodorants, the interrelational significance of the olfacto-genital correlation must be taken into consideration, hence the advisability that products used in personal hygiene be endowed with a note of biological odour. It follows that the natural biological odour does not induce others to behave in a certain manner, but provides an unequivocal signal of availability to whomsoever, at that particular moment, is able selectively to perceive it (Rialdi, G.). This also conditions the formulation of perfumes to the detriment of their artificiality and in favour of an ever greater naturalization or “humanization”. Osmopherine and Osmopherone, selected pheromonic copulines, are the answer to this problem. Initially developed as osmosteniant steroids (1978), they have been succes-sively integrated with osmosteniant elements identified in specific human acidophile microflora cultures, and reconsti-tuted.