Anti-Inflammatory Activities of Pentaherbs Formula, Berberine, Gallic Acid and Chlorogenic Acid in Atopic Dermatitis-Like Skin Inflammation.
Tsang MS, Jiao D, Chan BC, et al. Anti-Inflammatory Activities of Pentaherbs Formula, Berberine, Gallic Acid and Chlorogenic Acid in Atopic Dermatitis-Like Skin Inflammation. Molecules 2016;21(4):519.
Study type: Animal + human cells · Added to this library August 23, 2026
What the researchers did
A five-herb pediatric eczema formula and its isolated actives, including berberine, in AD-like mouse models and human cell culture.
What they found
Reduced ear swelling, epidermal thickening and eosinophil infiltration; berberine alone suppressed pro-inflammatory cytokines in human cells.
Why it matters
Hong Kong's clinical pentaherbs tradition and our topical share the same active — and the isolated compound reproduces the effect.
Relates to the patterns: Damp-Heat · Heat-Toxin
This summary is educational and does not replace care from your child's pediatrician. Evidence tiers matter: a finding in cells or animals is a reason a treatment could work, not proof that it does.
More in Huang Lian Gao
Huanglian ointment alleviates eczema by maintaining the balance of c-Jun and JunB and inhibiting AGE-RAGE-mediated pro-inflammation signaling pathway.
Wang S, Wang Y, Han B, Chen Y, Bai X, Yu S, Liu M. Huanglian ointment alleviates eczema by maintaining the balance of c-Jun and JunB and inhibiting AGE-RAGE-mediated pro-inflammation signaling pathway. Phytomedicine 2022;105:154372.
Study type: Animal (Biostir-AD guinea pig) + in vitro (TNF-α/IFN-γ HaCaT) + network pharmacology
Found: 14 components by GC-MS; 78 eczema-intersecting targets (Jun family, inflammatory regulators, chemokines). In vivo: reduced lesions, restored histology, lowered TNF-α, IFN-γ, IL-6. In vitro: protected keratinocytes, suppressed TARC/MDC/RANTES. Mechanism: restored filaggrin via c-Jun/JunB balance; inhibited AGE-RAGE.
Why it matters: Huang Lian Gao is a barrier-repair agent as well as a heat-toxin antimicrobial — this supports its use on hot, inflamed Damp-Heat lesions, not only visibly infected ones.
Berberine Inhibits the Inflammatory Response Induced by Staphylococcus aureus Isolated from Atopic Eczema Patients via the TNF-α/Inflammation/RAGE Pathways.
Maskey AR, Kopulos D, Kwan M, et al. Berberine Inhibits the Inflammatory Response Induced by Staphylococcus aureus Isolated from Atopic Eczema Patients via the TNF-α/Inflammation/RAGE Pathways. Cells 2024;13(19).
Study type: In vitro + animal (keratinocyte/immune cell lines; S. aureus isolated from real eczema patients)
What: Exposed human skin cells to S. aureus strains taken from eczema patients, with and without berberine (the main active compound of Huang Lian).
Found: Berberine was bacteriostatic and suppressed TNF-α by more than 90% at 20 µg/mL, down-regulated inflammatory genes and reduced oxidative stress — through the same RAGE pathway the Huanglian-ointment study found independently in 2022.
Why it matters: "Resolve Toxin" is both halves at once — restrain the bacterium and switch off the skin's overreaction to it. Two labs, two years apart, found the same pathway.
A berberine-loaded hydrogel for the treatment of atopic dermatitis through antibacterial activity, inhibition of inflammation and modulation of oxidative stress.
Peng Z, Wei XY, Zeng X, et al. A berberine-loaded hydrogel for the treatment of atopic dermatitis through antibacterial activity, inhibition of inflammation and modulation of oxidative stress. Front Immunol 2026.
Study type: Animal (topical, AD mouse model) + in vitro
What: A modern topical berberine hydrogel applied to mice with eczema-like disease.
Found: Reduced redness, swelling and crusting; suppressed inflammatory markers; restored skin-barrier proteins, via PI3K/AKT/NF-κB.
Why it matters: A 2026 pharmaceutical formulation arriving at what Huang Lian Gao already is: topical berberine for inflamed, infection-prone eczema.
Berberine induces anti-atopic dermatitis effects through the downregulation of cutaneous EIF3F and MALT1 in NC/Nga mice.
Andoh T, Yoshihisa Y, Rehman MU, Tabuchi Y, Shimizu T. Berberine induces anti-atopic dermatitis effects through the downregulation of cutaneous EIF3F and MALT1 in NC/Nga mice. Biochem Pharmacol 2021;185:114429.
Study type: Animal (oral, NC/Nga AD mouse model)
What: Oral berberine in the standard Japanese eczema mouse model.
Found: Less scratching, lower skin symptom scores, fewer eosinophils and mast cells in skin; mechanism traced to mast-cell genes (EIF3F, MALT1).
Why it matters: Independent evidence that berberine quiets the mast-cell and itch machinery, not just bacteria.