Allergy to oxidized limonene and linalool is frequent in the U.K.

H Audrain, C Kenward, C R Lovell, C Green, A D Ormerod, J Sansom, M M U Chowdhury, S M Cooper, G A Johnston, M Wilkinson, C King, N Stone, H L Horne, C R Holden, S Wakelin, D A Buckley

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Abstract

Background: The oxidized forms of the fragrance terpenes limonene and linalool are known to cause allergic contact dermatitis. Significant rates of contact allergy to these fragrances have been reported in European studies and in a recent worldwide study. Patch testing to oxidized terpenes is not routinely carried out either in the U.K. or in other centres internationally. Objectives: To investigate the prevalence of contact allergy to oxidized limonene and linalool in the U.K. Methods: Between 1 August 2011 and 31 December 2012, 4731 consecutive patients in 13 U.K. dermatology departments were tested for hydroperoxides of limonene 0·3% pet., hydroperoxides of linalool 1·0% pet., stabilized limonene 10·0% pet. and stabilized linalool 10·0% pet. Doubtful (?+) and equivocal (±) reactions were grouped together as irritant reactions. Results: Two hundred and thirty-seven patients (5·0%) had a positive patch test reaction to hydroperoxides of limonene 0·3% pet. and 281 (5·9%) to hydroperoxides of linalool 1·0% pet. Irritant reactions to one or both oxidized terpenes were found in 242 patients (7·3%). Eleven patients (0·2%) had a positive patch test reaction to the stabilized terpenes alone. Conclusions: This large, multicentre U.K. audit shows a significant rate of allergy to the hydroperoxides of limonene and linalool plus a high rate of irritant reactions. Testing to the oxidized forms alone captures the majority (97·0%; 411 of 422) of positive reactions; testing to nonoxidized terpenes appears to be less useful. We recommend that the hydroperoxides of limonene and linalool be added to an extended baseline patch test series. © 2014 British Association of Dermatologists.

Original languageEnglish
Pages (from-to)292-297
Number of pages6
JournalBritish Journal of Dermatology
Volume171
Issue number2
Early online date26 Jul 2014
DOIs
Publication statusPublished - Aug 2014

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Pets
Hypersensitivity
Terpenes
Hydrogen Peroxide
Patch Tests
Irritants
Allergic Contact Dermatitis
Dermatology
limonene
linalool

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Audrain, H., Kenward, C., Lovell, C. R., Green, C., Ormerod, A. D., Sansom, J., ... Buckley, D. A. (2014). Allergy to oxidized limonene and linalool is frequent in the U.K. British Journal of Dermatology, 171(2), 292-297. https://doi.org/10.1111/bjd.13037

Allergy to oxidized limonene and linalool is frequent in the U.K. / Audrain, H; Kenward, C; Lovell, C R; Green, C; Ormerod, A D; Sansom, J; Chowdhury, M M U; Cooper, S M; Johnston, G A; Wilkinson, M; King, C; Stone, N; Horne, H L; Holden, C R; Wakelin, S; Buckley, D A.

In: British Journal of Dermatology, Vol. 171, No. 2, 08.2014, p. 292-297.

Research output: Contribution to journalArticle

Audrain, H, Kenward, C, Lovell, CR, Green, C, Ormerod, AD, Sansom, J, Chowdhury, MMU, Cooper, SM, Johnston, GA, Wilkinson, M, King, C, Stone, N, Horne, HL, Holden, CR, Wakelin, S & Buckley, DA 2014, 'Allergy to oxidized limonene and linalool is frequent in the U.K.', British Journal of Dermatology, vol. 171, no. 2, pp. 292-297. https://doi.org/10.1111/bjd.13037
Audrain H, Kenward C, Lovell CR, Green C, Ormerod AD, Sansom J et al. Allergy to oxidized limonene and linalool is frequent in the U.K. British Journal of Dermatology. 2014 Aug;171(2):292-297. https://doi.org/10.1111/bjd.13037
Audrain, H ; Kenward, C ; Lovell, C R ; Green, C ; Ormerod, A D ; Sansom, J ; Chowdhury, M M U ; Cooper, S M ; Johnston, G A ; Wilkinson, M ; King, C ; Stone, N ; Horne, H L ; Holden, C R ; Wakelin, S ; Buckley, D A. / Allergy to oxidized limonene and linalool is frequent in the U.K. In: British Journal of Dermatology. 2014 ; Vol. 171, No. 2. pp. 292-297.
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abstract = "Background: The oxidized forms of the fragrance terpenes limonene and linalool are known to cause allergic contact dermatitis. Significant rates of contact allergy to these fragrances have been reported in European studies and in a recent worldwide study. Patch testing to oxidized terpenes is not routinely carried out either in the U.K. or in other centres internationally. Objectives: To investigate the prevalence of contact allergy to oxidized limonene and linalool in the U.K. Methods: Between 1 August 2011 and 31 December 2012, 4731 consecutive patients in 13 U.K. dermatology departments were tested for hydroperoxides of limonene 0·3{\%} pet., hydroperoxides of linalool 1·0{\%} pet., stabilized limonene 10·0{\%} pet. and stabilized linalool 10·0{\%} pet. Doubtful (?+) and equivocal (±) reactions were grouped together as irritant reactions. Results: Two hundred and thirty-seven patients (5·0{\%}) had a positive patch test reaction to hydroperoxides of limonene 0·3{\%} pet. and 281 (5·9{\%}) to hydroperoxides of linalool 1·0{\%} pet. Irritant reactions to one or both oxidized terpenes were found in 242 patients (7·3{\%}). Eleven patients (0·2{\%}) had a positive patch test reaction to the stabilized terpenes alone. Conclusions: This large, multicentre U.K. audit shows a significant rate of allergy to the hydroperoxides of limonene and linalool plus a high rate of irritant reactions. Testing to the oxidized forms alone captures the majority (97·0{\%}; 411 of 422) of positive reactions; testing to nonoxidized terpenes appears to be less useful. We recommend that the hydroperoxides of limonene and linalool be added to an extended baseline patch test series. {\circledC} 2014 British Association of Dermatologists.",
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AU - Audrain, H

AU - Kenward, C

AU - Lovell, C R

AU - Green, C

AU - Ormerod, A D

AU - Sansom, J

AU - Chowdhury, M M U

AU - Cooper, S M

AU - Johnston, G A

AU - Wilkinson, M

AU - King, C

AU - Stone, N

AU - Horne, H L

AU - Holden, C R

AU - Wakelin, S

AU - Buckley, D A

N1 - © 2014 British Association of Dermatologists.

PY - 2014/8

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N2 - Background: The oxidized forms of the fragrance terpenes limonene and linalool are known to cause allergic contact dermatitis. Significant rates of contact allergy to these fragrances have been reported in European studies and in a recent worldwide study. Patch testing to oxidized terpenes is not routinely carried out either in the U.K. or in other centres internationally. Objectives: To investigate the prevalence of contact allergy to oxidized limonene and linalool in the U.K. Methods: Between 1 August 2011 and 31 December 2012, 4731 consecutive patients in 13 U.K. dermatology departments were tested for hydroperoxides of limonene 0·3% pet., hydroperoxides of linalool 1·0% pet., stabilized limonene 10·0% pet. and stabilized linalool 10·0% pet. Doubtful (?+) and equivocal (±) reactions were grouped together as irritant reactions. Results: Two hundred and thirty-seven patients (5·0%) had a positive patch test reaction to hydroperoxides of limonene 0·3% pet. and 281 (5·9%) to hydroperoxides of linalool 1·0% pet. Irritant reactions to one or both oxidized terpenes were found in 242 patients (7·3%). Eleven patients (0·2%) had a positive patch test reaction to the stabilized terpenes alone. Conclusions: This large, multicentre U.K. audit shows a significant rate of allergy to the hydroperoxides of limonene and linalool plus a high rate of irritant reactions. Testing to the oxidized forms alone captures the majority (97·0%; 411 of 422) of positive reactions; testing to nonoxidized terpenes appears to be less useful. We recommend that the hydroperoxides of limonene and linalool be added to an extended baseline patch test series. © 2014 British Association of Dermatologists.

AB - Background: The oxidized forms of the fragrance terpenes limonene and linalool are known to cause allergic contact dermatitis. Significant rates of contact allergy to these fragrances have been reported in European studies and in a recent worldwide study. Patch testing to oxidized terpenes is not routinely carried out either in the U.K. or in other centres internationally. Objectives: To investigate the prevalence of contact allergy to oxidized limonene and linalool in the U.K. Methods: Between 1 August 2011 and 31 December 2012, 4731 consecutive patients in 13 U.K. dermatology departments were tested for hydroperoxides of limonene 0·3% pet., hydroperoxides of linalool 1·0% pet., stabilized limonene 10·0% pet. and stabilized linalool 10·0% pet. Doubtful (?+) and equivocal (±) reactions were grouped together as irritant reactions. Results: Two hundred and thirty-seven patients (5·0%) had a positive patch test reaction to hydroperoxides of limonene 0·3% pet. and 281 (5·9%) to hydroperoxides of linalool 1·0% pet. Irritant reactions to one or both oxidized terpenes were found in 242 patients (7·3%). Eleven patients (0·2%) had a positive patch test reaction to the stabilized terpenes alone. Conclusions: This large, multicentre U.K. audit shows a significant rate of allergy to the hydroperoxides of limonene and linalool plus a high rate of irritant reactions. Testing to the oxidized forms alone captures the majority (97·0%; 411 of 422) of positive reactions; testing to nonoxidized terpenes appears to be less useful. We recommend that the hydroperoxides of limonene and linalool be added to an extended baseline patch test series. © 2014 British Association of Dermatologists.

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DO - 10.1111/bjd.13037

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