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Trihydroxybenzoic acid glucoside as a global skin color modulator and photo-protectant.

Chajra H, Redziniak G, Auriol D, Schweikert K, Lefevre F - Clin Cosmet Investig Dermatol (2015)

Bottom Line: We have demonstrated using histological staining that THBG decrease epidermis melanin content under unirradiated and irradiated condition.We also confirmed that THBG molecule is not a sunscreen agent.This study demonstrated that THBG controls skin tone via the inhibition of melanin synthesis as well as the modulation of skin brightness, yellowness, and redness.

View Article: PubMed Central - PubMed

Affiliation: Induchem AG, Volkestwil, Switzerland.

ABSTRACT

Background: 3,4,5-Trihydroxybenzoic acid glucoside (THBG), a molecule produced by an original biocatalysis-based technology, was assessed in this study with respect to its skin photoprotective capacity and its skin color control property on Asian-type skin at a clinical level and on skin explant culture models.

Methods: The double-blinded clinical study was done in comparison to a vehicle by the determination of objective color parameters thanks to recognized quantitative and qualitative analysis tools, including Chroma-Meter, VISIA-CR™, and SIAscope™. Determination of L* (brightness), a* and b* (green-red and blue-yellow chromaticity coordinates), individual typology angle, and C* (chroma) and h* (hue angle) parameters using a Chroma-Meter demonstrated that THBG is able to modify skin color while quantification of ultraviolet (UV) spots by VISIA-CR™ confirmed its photoprotective effect. The mechanism of action of THBG molecule was determined using explant skin culture model coupled to histological analysis (epidermis melanin content staining).

Results: We have demonstrated that THBG was able to modulate significantly several critical parameters involved in skin color control such as L* (brightness), a* (redness), individual typology angle (pigmentation), and hue angle (yellowness in this study), whereas no modification occurs on b* and C* parameters. We have demonstrated using histological staining that THBG decrease epidermis melanin content under unirradiated and irradiated condition. We also confirmed that THBG molecule is not a sunscreen agent.

Conclusion: This study demonstrated that THBG controls skin tone via the inhibition of melanin synthesis as well as the modulation of skin brightness, yellowness, and redness.

No MeSH data available.


Related in: MedlinePlus

Macrophotographies taken using visible light from three volunteers before and after vehicle cream or THBG cream application for 84 days.Note: Decrease of skin redness is visible on these three volunteers, whereas no or slight improvement is seen with vehicle cream application.Abbreviations: THBG, 3,4,5-trihydroxybenzoic acid glucoside; D, day.
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f3-ccid-8-579: Macrophotographies taken using visible light from three volunteers before and after vehicle cream or THBG cream application for 84 days.Note: Decrease of skin redness is visible on these three volunteers, whereas no or slight improvement is seen with vehicle cream application.Abbreviations: THBG, 3,4,5-trihydroxybenzoic acid glucoside; D, day.

Mentions: Figure 3 is an illustration of the results obtained on three representative volunteers after the application of THBG and vehicle creams. The application of the cream containing THBG induced an improvement of skin redness. Indeed, volunteer 1 at the beginning of the study (D0) got a red halo on both the hemi-faces. After 84 days of THBG treatment, we recorded a strong decrease of this halo. Moreover, volunteers 2 and 3 showed a strong redness at the beginning of the study on their noses (alar area). After 84 days of twice-daily use of THBG, the redness was strongly decreased. The hemi-faces treated with vehicle cream did not show any improvement of skin redness in this specific area. On these same pictures, we confirmed the brightening effect of THBG.


Trihydroxybenzoic acid glucoside as a global skin color modulator and photo-protectant.

Chajra H, Redziniak G, Auriol D, Schweikert K, Lefevre F - Clin Cosmet Investig Dermatol (2015)

Macrophotographies taken using visible light from three volunteers before and after vehicle cream or THBG cream application for 84 days.Note: Decrease of skin redness is visible on these three volunteers, whereas no or slight improvement is seen with vehicle cream application.Abbreviations: THBG, 3,4,5-trihydroxybenzoic acid glucoside; D, day.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4664441&req=5

f3-ccid-8-579: Macrophotographies taken using visible light from three volunteers before and after vehicle cream or THBG cream application for 84 days.Note: Decrease of skin redness is visible on these three volunteers, whereas no or slight improvement is seen with vehicle cream application.Abbreviations: THBG, 3,4,5-trihydroxybenzoic acid glucoside; D, day.
Mentions: Figure 3 is an illustration of the results obtained on three representative volunteers after the application of THBG and vehicle creams. The application of the cream containing THBG induced an improvement of skin redness. Indeed, volunteer 1 at the beginning of the study (D0) got a red halo on both the hemi-faces. After 84 days of THBG treatment, we recorded a strong decrease of this halo. Moreover, volunteers 2 and 3 showed a strong redness at the beginning of the study on their noses (alar area). After 84 days of twice-daily use of THBG, the redness was strongly decreased. The hemi-faces treated with vehicle cream did not show any improvement of skin redness in this specific area. On these same pictures, we confirmed the brightening effect of THBG.

Bottom Line: We have demonstrated using histological staining that THBG decrease epidermis melanin content under unirradiated and irradiated condition.We also confirmed that THBG molecule is not a sunscreen agent.This study demonstrated that THBG controls skin tone via the inhibition of melanin synthesis as well as the modulation of skin brightness, yellowness, and redness.

View Article: PubMed Central - PubMed

Affiliation: Induchem AG, Volkestwil, Switzerland.

ABSTRACT

Background: 3,4,5-Trihydroxybenzoic acid glucoside (THBG), a molecule produced by an original biocatalysis-based technology, was assessed in this study with respect to its skin photoprotective capacity and its skin color control property on Asian-type skin at a clinical level and on skin explant culture models.

Methods: The double-blinded clinical study was done in comparison to a vehicle by the determination of objective color parameters thanks to recognized quantitative and qualitative analysis tools, including Chroma-Meter, VISIA-CR™, and SIAscope™. Determination of L* (brightness), a* and b* (green-red and blue-yellow chromaticity coordinates), individual typology angle, and C* (chroma) and h* (hue angle) parameters using a Chroma-Meter demonstrated that THBG is able to modify skin color while quantification of ultraviolet (UV) spots by VISIA-CR™ confirmed its photoprotective effect. The mechanism of action of THBG molecule was determined using explant skin culture model coupled to histological analysis (epidermis melanin content staining).

Results: We have demonstrated that THBG was able to modulate significantly several critical parameters involved in skin color control such as L* (brightness), a* (redness), individual typology angle (pigmentation), and hue angle (yellowness in this study), whereas no modification occurs on b* and C* parameters. We have demonstrated using histological staining that THBG decrease epidermis melanin content under unirradiated and irradiated condition. We also confirmed that THBG molecule is not a sunscreen agent.

Conclusion: This study demonstrated that THBG controls skin tone via the inhibition of melanin synthesis as well as the modulation of skin brightness, yellowness, and redness.

No MeSH data available.


Related in: MedlinePlus