Forsythia suspensa extract is a concentrated active ingredient obtained from the dried fruits of Forsythia suspensa, a plant of the Oleaceae family, through modern techniques such as solvent extraction and ultrasonic extraction.
一：Main active ingredient
（1）Phenylethanol glycosides: These are the characteristic components of Forsythia suspensa and also the most studied ones
l Forsythia suspenseside A: Regarded as one of the most important active ingredients, it has powerful antibacterial, antiviral, antioxidant and anti-inflammatory effects
l Forsythia glycosides D, E, etc
（2）Lignans: such as forsythia glycoside, forsythia lipid, etc., also have anti-inflammatory and liver-protecting effects
（3）Flavonoids: such as rutin, provide antioxidant effects
（4）Volatile oil: It has a relatively low content but contributes some aroma and pharmacological activity
二：Core functions and uses
（1）Broad-spectrum antibacterial and antiviral (most famous efficacy)
l Antibacterial: It has inhibitory effects on various Gram-positive and Gram-negative bacteria such as Staphylococcus aureus and Streptococcus
l Antiviral: Research shows that it has inhibitory effects on influenza virus, respiratory syncytial virus, herpes virus, etc. In traditional Chinese medicine theory, this corresponds to its effect of “clearing heat and detoxifying”, and is often used to treat wind-heat cold and sore throat
（2）Anti-inflammatory and antipyretic
l It can inhibit the production of various inflammatory factors (such as TNF-α and IL-6), reduce inflammatory responses, and thereby play a role in reducing fever and alleviating redness, swelling, heat and pain
（3）Antioxidant and liver protection
Its powerful antioxidant capacity can eliminate free radicals and reduce the damage to the liver caused by oxidative stress. It is often used as an adjunctive treatment for hepatitis
（4）Neuroprotective effects (an emerging research field)
Some studies have shown that forsythia suspenseside A may have potential improvement effects on neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s disease through anti-inflammatory and antioxidant pathways
（5）Other potential functions:
三：Main application fields
l Medicines: As an active ingredient of prescription drugs or over-the-counter (OTC) drugs, it is used to treat acute upper respiratory tract infections, tonsillitis, pneumonia, etc. It is commonly found in compound preparations.
l Health supplements/dietary supplements: Made into capsules, tablets or powders, they are used to enhance immunity, prevent colds and protect the liver on a daily basis
l Cosmetics/skin care products: Utilizing its antibacterial, anti-inflammatory and antioxidant properties, it is used in acne
l removal products, soothing and anti-allergy products, as well as anti-aging products
l Animal feed additives: As potential alternatives to antibiotics, they are used to prevent intestinal diseases in livestock and poultry
四：Extraction process
（1）traditional method
l Water extraction method: Using water as the solvent, extraction is carried out through steps such as soaking, heating, filtration, and concentration. The operation is simple but the efficiency is relatively low
l Alcohol extraction method: Utilizing ethanol to dissolve components such as Forsythia glycoside, the extraction efficiency is relatively high
（2）modern technology
l Ultrasonic extraction: Accelerate the dissolution of components through ultrasonic vibration and increase the extraction rate
l Centrifugal extraction: Utilizing centrifugal force to separate mixtures and achieve efficient and deep extraction (such as the ZKCQ new type centrifugal extraction machine)
l Supercritical fluid extraction: Using CO₂ as the solvent, extraction is carried out under supercritical conditions, retaining the active components without solvent residue
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Post time: Jan-27-2026