Why we use Diglucosyl Gallic Acid

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why we use diglucosyl gallic acid

The Basics

Diglucosyl gallic acid, also known as trihydroxybenzoic acid glucoside (THBG), is a cutting-edge biotechnological molecule renowned for its skin-brightening and protective properties. Activated by the skin's natural microbiome, it offers a multifaceted approach to enhancing skin appearance and health.

Activation by the Skin Microbiome

Diglucosyl gallic acid (THBG) is a microbiome-activated brightening molecule, meaning its full potential is unlocked only after interacting with the skin’s natural flora. Upon topical application, THBG undergoes enzymatic bioconversion, where beneficial skin bacteria metabolise it into trihydroxybenzoic acid (THBA). This process allows for a gradual, controlled release of its active form, optimising its skin benefits while ensuring better stability and reduced irritation compared to direct acid application.

Both THBG and its metabolite, THBA, work in synergy to deliver comprehensive skin improvements. THBG acts as a reservoir, ensuring a sustained brightening effect, while THBA actively inhibits melanin production and reduces oxidative stress. This dual mechanism results in a more even skin tone, reduced redness, and correction of sallowness, particularly in areas prone to dullness.²

Additionally, the microbiome-activated nature of THGB allows it to adapt to individual skin conditions. Since every person's microbiota is unique, this ingredient works in harmony with natural bacterial populations, promoting more personalised skin benefits.

Why Microbiome Activation Matters

Unlike conventional brighteners that may rely on harsh exfoliation or irritation, diglucosyl gallic acid leverages biological activation for a gentler yet highly effective approach. By relying on natural enzymatic processes, it ensures:

Gradual, sustained release for longer-lasting results.
Enhanced bioavailability, improving absorption and skin penetration.
Lower irritation potential, making it suitable for sensitive skin.

This next-generation brightening technology makes diglucosyl gallic acid a standout ingredient for improving uneven skin tone, reducing redness, and promoting a radiant, healthy-looking complexion.

Mechanisms of Action

Diglucosyl gallic acid operates through seven distinct biological pathways¹:

Antioxidant Defence

It inhibits reactive oxygen species (ROS) production, safeguarding skin cells from oxidative stress.

DNA Protection

By preventing UV-induced DNA damage, it helps maintain skin integrity.

Melanin Regulation

It controls the expression of MITF, a key regulator in melanin production, thereby reducing hyperpigmentation.

Redness Reduction

By decreasing the expression of PGE2, it alleviates skin redness and inflammation.

Anti-inflammatory Action

It modulates the NF-κB pathway, leading to a reduction in inflammatory responses.

Keratinocyte Receptor Saturation

This action aids in skin brightening by influencing keratinocyte activity.

Melanin Synthesis Inhibition

Even under UV exposure, it effectively blocks melanin synthesis, ensuring consistent skin tone improvement.

Clinical Evidence

A study published in the International Journal of Research in Dermatology evaluated a formulation containing 10% THBG and 2% α-arbutin over 56 days. The results demonstrated a significant reduction in melanin content and an improvement in skin brightness and evenness. These findings underscore the efficacy of diglucosyl gallic acid in addressing hyperpigmentation and enhancing overall skin tone.³

Safety and Tolerability

Clinical assessments have confirmed that THBG is well-tolerated, with minimal risk of irritation. Its activation by the skin's microbiome ensures targeted action, reducing the potential for adverse effects. This makes it suitable for various skin types, including sensitive skin.

Incorporation into your Skincare Routine

Due to its stability and efficacy, diglucosyl gallic acid is increasingly featured in advanced skincare formulations aimed at brightening and protecting the skin. Regular use can lead to noticeable improvements in skin clarity, tone, and resilience.

references

1 Brightenyl® by Givaudan Active Beauty - Personal Care & Cosmetics. (2022). Retrieved 11 September 2022, from Brightenyl® by Givaudan Active Beauty
2 Chajra, H., Redziniak, G., Auriol, D., Schweikert, K., & Lefevre, F. (2015). Trihydroxybenzoic acid glucoside as a global skin color modulator and photo-protectant. Clinical, Cosmetic And Investigational Dermatology, 579. doi: 10.2147/ccid.s93364 Trihydroxybenzoic acid glucoside as a global skin color modulator and photo-protectant.
3 Mathpati, S., Gabhane, M., Rohira, P., & Shah, P. (2022). Efficacy and safety of topical trihydroxybenzoic acid glucoside and alpha-arbutin containing formulation along with a sunscreen in facial hyperpigmentation. International Journal of Research in Dermatology, 8(5), 466–476. doi: 10.18203/issn.2455-4529.IntJResDermatol20222178 Efficacy and safety of topical trihydroxybenzoic acid glucoside and alpha-arbutin containing formulation along with a sunscreen in facial hyperpigmentation.