Fruits and seedsAstringentRubi Fructus

Fu Pen Zi (Raspberry)

Q: What is Fu Pen Zi? Are Jin Ying Zi and Sang Shen the same?

Official Fu Pen Zi (覆盆子) is the dried fruit of Rubus chingii . The pharmacopoeial name is Rubi Fructus . Jin Ying Zi is sour-astringent and neutral: secures essence, reduces urination, secures flooding, stops vaginal discharge, astringes the intestines and stops diarrhea. Sang Shen is sweet-sour and cold: nourishes yin, supplements Blood, generates fluid and moistens dryness. Write Fu Pen Zi. Use caution in Kidney heat with short, inhibited urine.

Q: What are the TCM properties and traditional uses of Fu Pen Zi?

According to the Chinese Pharmacopoeia, Fu Pen Zi is sweet, sour and warm , enters the Liver and Kidney channels, and acts to benefit the Kidney, secure essence, reduce urination, nourish the Liver and brighten the eyes . It is used for seminal emission and spermatorrhea, enuresis and frequent urination, impotence and premature ejaculation, and dim vision. Sweet-sour, warm and astringent, it suits Kidney vacuity that fails to secure—not yin-vacuity fire or short, inhibited urine.

Q: What is the usual dosage? Can it be drunk daily as an essence tea?

The pharmacopoeial decoction dose is 6–12 g . It is not a four-season “raspberry essence tea.” Yin-vacuity fire only dries further as it warms. Seminal emission and frequent urination need a practitioner to name a short course; they do not replace urologic assessment.

Q: What are the contraindications? Can it be used in pregnancy?

Unsuitable in yin-vacuity fire and short, inhibited urine. Pregnancy needs a practitioner’s assessment. Stop if dry mouth, reduced urine or constipation appears. Blood in the urine and difficulty passing urine need medical care.

Q: How do you choose and store Fu Pen Zi?

Choose aggregate fruits, yellow-green to pale yellow-brown, a blunt round apex, a fruit-stalk scar at the base, a faint odor and a slightly sour-astringent taste . Moldy, scorched or dirty lots are discarded. Store dry. Buy pharmacopoeial Fu Pen Zi; do not replace benefiting the Kidney, securing essence, reducing urination, nourishing the Liver and brightening the eyes with cherokee rose or mulberry fruit by equal weight.

A practical guide to Fu Pen Zi: what it is, how Traditional Chinese Medicine uses it, the classical formulas it appears in, and who should be careful with it.

View Herb Profile →

Last reviewed Oct 13, 2026

Quick Facts

Latin Name	Rubi Fructus
Chinese Name & Pinyin	覆盆子 · Fu Pen Zi
Medicinal Part	Fruits and seeds
The herb	Fu Pen Zi is the dried fruit of Rubus chingii. Tu Si Zi, Jin Ying Zi, and Wu Wei Zi are different official drugs.
Nature and channels	Sweet, sour, warm. Enters the Liver, Kidney, and Bladder. Sweet sourness boosts the Kidney. Warmth secures essence, reduces urine, and nourishes the Liver to brighten the eyes.
Pharmacopoeia line	Boosts the Kidney, secures essence, and reduces urine. Nourishes the Liver and brightens the eyes. Used for seminal emission and spermatorrhea, enuresis and frequent urine, impotence and premature ejaculation, and dim vision.
Pattern cues	Seminal emission. Enuresis. Frequent urine. Dim vision. Pale tongue.
In this article	Fu Pen Zi versus Tu Si Zi, Gou Qi Zi, and Jin Ying Zi. Its place in Wu Zi Yan Zong Wan. Why yin-deficiency fire should skip it. Who should skip it.

What Is Fu Pen Zi?

Fu Pen Zi (覆盆子; Fù Pén Zǐ; Latin: Rubi Fructus; English: Chinese raspberry) is the dried fruit of Rubus chingii Hu. In Chinese medicine it is an astringent herb. It is sweet, sour, and warm, enters the Liver, Kidney, and Bladder channels, and its core actions are to boost the Kidney, secure essence, and reduce urine, and to nourish the Liver and brighten the eyes. The teaching point is seminal emission and enuresis from Kidney deficiency. It is not Tu Si Zi. Dodder seed is acrid, sweet, and neutral. It tonifies Liver and Kidney and secures essence, and also calms the fetus and brightens the eyes. It is not Jin Ying Zi. Cherokee rose fruit is sour, astringent, and neutral. It secures essence, reduces urine, and astringes the intestines to stop diarrhea. Tonification is weaker. Shop raspberry and bramble fruit are not automatically this piece. Yin-deficiency fire and scant hesitant urine are a poor match. This is not a sexual-function product claim.

It is used most often for three patterns:

Seminal emission, spermatorrhea, enuresis, frequent urine — Kidney failing to secure
Impotence and premature ejaculation — this needs pattern diagnosis
Dim vision — Liver–Kidney insufficiency

The usual decoction dose is 6–12 g. Sweet, sour, warm, and astringent, it is not a daily “securing raspberry” to keep increasing. Astringing when there is no deficiency, or when urine is scant and painful, traps the pathogen.

When Kidney qi fails to secure, seminal emission, frequent urine, and dim vision are common. Fu Pen Zi is sweet, sour, and warm. It boosts, secures, and brightens the eyes, which is why it appears in Wu Zi Yan Zong Wan. It warms and astringes more than it clears. A dry mouth, painful urine, and a red tongue with yellow coating get more stagnant if more securing is added.

Fu Pen Zi is not a catch-all essence or vision fruit. In yin-deficiency fire or scant hesitant urine, using it alone can warm, astringe, and trap the pathogen. Whether it belongs in a formula should be decided by a licensed Chinese medicine practitioner after pattern diagnosis.

Fu Pen Zi: Materia Medica Profile

Identification & Quality Standard

Rubi Fructus

Botanical Origin

The dried mature fruit of Rubus chingii Hu (Rosaceae).

Production Regions

Primarily produced in the Chinese provinces of Zhejiang, Fujian, Hubei, Anhui, Jiangxi, Guangdong.

Quality Requirements

Superior medicinal material is large, full, intact, firm, grayish-brown, without fruit stem.

Macroscopic Features

Aggregate fruit is composed of numerous fruitlets, conical or flat conical, 0.6~1.3cm tall, 0.5~1.2cm diameter. Externally yellowish-brown or pale brown, apex is blunt and round, center of base is indented. Persistent calyx is brown, below are stem scars. Fruitlets are easily to peel off, every fruitlet is half-moon shaped, back side has dense grayish-white fuzz, both sides have obvious reticulations, front side has raised crest lines. Light, hard texture; faint odor; slightly sour and astringent taste.

Authentic Regions and Quality Identification

Traditionally, high-quality Fu Pen Zi (Raspberry) is sourced from provinces like Zhejiang and Fujian.

Appearance: Authentic dried berries look like small, yellowish-green to light brown spheres made of tightly packed tiny drupes. They are hard with a small depression at the top.
Taste and Smell: They have a mildly sour smell and a flavor that is slightly sweet, sour, and astringent.
Imitations: Lower-quality or confused substitutes often come from other plants in the same genus. These usually have loosely packed drupes, feel lighter, and differ noticeably in taste.

Traditional Properties & Historical Lineage

Nature, Flavour & Channel Tropism

Sweet, Sour; WarmLiverKidney

1. Historical Records

This herb has a long history of high regard in classical TCM texts:

Shen Nong Ben Cao Jing (Divine Farmer's Materia Medica) listed it as a top-grade herb, noting its ability to boost Qi, make the body feel lighter, and prevent premature graying of hair.
Ming Yi Bie Lu (Miscellaneous Records of Famous Physicians) highlighted its power to tonify the Liver, brighten the eyes, and reduce frequent urination.
Ben Cao Gang Mu (Compendium of Materia Medica) expanded on its uses, stating it helps replenish weakness, balances Yin and Yang, improves skin complexion, and relieves fatigue.
De Pei Ben Cao (Materia Medica of Combinations) noted excellent pairings: combining it with Gou Qi Zi (Goji Berry) boosts essence, while pairing it with Yi Zhi Ren (Sharpleaf Galangal Fruit) helps manage frequent urination.

2. Evolution of TCM Understanding

Over centuries, different TCM doctors emphasized different strengths of Fu Pen Zi (Raspberry). Some focused on its gentle, long-term nourishing effects for the Liver and Kidneys, while others valued its "astringent" nature for issues like frequent urination.

Safety Note: Despite these varying focuses, medical texts agree on a key contraindication: it should not be used by individuals with "excess fire" or those experiencing dark, scanty, and painful urination.

Core Efficacies & Traditional Applications

Traditional Functions

Boosts kidney, secures essence, reduces urine, apply to enuresis due to kidney deficiency, frequent urination, impotence and premature ejaculation, spermatorrhea.

1. Primary Focus: Tonifying the Liver and Kidneys

In Traditional Chinese Medicine (TCM), Fu Pen Zi (Raspberry) is primarily used to tonify the Liver and Kidneys.

Common Symptoms: It helps with conditions caused by Liver and Kidney deficiency, such as dizziness, ringing in the ears, weak lower back and knees, fatigue, and premature graying of hair.
Common Pairings: It is often combined with other tonics like Gou Qi Zi (Goji Berry) and Tu Si Zi (Dodder Seed) to boost its nourishing effects.
Caution: Do not use this if you have "excess fire" in the body, which shows up as scanty, dark urine or dry, hard stools, as it can make these heat symptoms worse.

2. Secondary Focus: Astringing and Consolidating

Another key function is its ability to "astringe" or hold things in, preventing the loss of vital essence due to weak Kidney Qi.

Common Symptoms: It is heavily used for frequent urination, bedwetting, and nocturnal emissions.
Common Pairings: It pairs well with other astringent herbs like Yi Zhi Ren (Sharpleaf Galangal Fruit) and Sang Piao Xiao (Mantis Egg Case).
Caution: Avoid using this if you have painful, scanty urination caused by "damp-heat," as its astringent nature can trap the heat inside your body.

3. Common Herb Pairing: The Synergy

A classic daily pairing is Fu Pen Zi (Raspberry) with Gou Qi Zi (Goji Berry).

The Synergy: While Fu Pen Zi (Raspberry) tonifies and astringes, Gou Qi Zi (Goji Berry) moistens and nourishes. Together, they create a balanced duo that boosts the Liver and Kidneys while preventing the astringent nature of the raspberry from being too harsh.
Use Case: This is excellent for dizziness, lower back weakness, and early gray hair, but should still be used under professional guidance rather than mixed blindly.

Modern Research

Modern research offers useful context, but Traditional Chinese Medicine prescribes on whole-pattern diagnosis rather than isolated compounds.

1. Main Chemical Components

Modern science has identified several compounds in Fu Pen Zi (Raspberry), including flavonoids, terpenes, polysaccharides, and organic acids. Flavonoids are currently the most heavily researched component. While test-tube and animal studies show potential antioxidant properties and slight improvements in memory (in mice), there are not enough clinical trials to confirm these specific effects in humans.

2. Modern Pharmacological Focus

Current laboratory research mainly looks into the herb's potential to act as an antioxidant and immune regulator. Animal tests suggest that extracts might help clear free radicals and gently support the immune system. However, this is strictly foundational research.

3. Limitations of Modern Research

It is important to remember that modern laboratory findings are limited:

Lab vs. Real Life: Results from test tubes and mice do not directly translate to human health benefits.
Extracts vs. Whole Herbs: Testing a single isolated chemical is completely different from drinking a traditional brewed herbal tea. The concentrations and absorption rates vary wildly.
The TCM Approach: Traditional medicine relies on the complex, synergistic interaction of the whole plant, not just one isolated "active ingredient."

Comparing Similar Herbs

1. Common Ground

Both Fu Pen Zi (Raspberry) and Tu Si Zi (Dodder Seed) are neutral tonics that boost the Liver and Kidneys. They are both used for lower back aches and dizziness.

2. Core Differences

Nature: Fu Pen Zi (Raspberry) has a sweet and sour flavor, giving it a strong astringent (holding in) quality. Tu Si Zi (Dodder Seed) is purely sweet and focuses on gentle, broad nourishment.
Focus: Choose Fu Pen Zi (Raspberry) when Liver/Kidney weakness is paired with leakage (like frequent urination). Choose Tu Si Zi (Dodder Seed) for overall essence building, brightening the eyes, or calming a restless fetus.

3. Summary of Differences

In short, Fu Pen Zi (Raspberry) specializes in tonifying while preventing leakage, whereas Tu Si Zi (Dodder Seed) is a broader, gentler, and more comprehensive Liver and Kidney tonic.

Classical Formulas Containing Fu Pen Zi

Wu Zi Yan Zong Wan

五子衍宗丸

Formula CategoryYang-Tonifying FormulasPrimary PatternKidney Yang DeficiencyPrimary FunctionTonify Kidney, benefit essence, secure essenceRelated ConditionsLow Libido·Premature Ejaculation

View Formula Profile Read Complete Guide

Formulas vs. Single Herbs

Synergy is Key: A formula is a balanced team. The healing power comes from how the herbs interact, so a single herb cannot simply replicate a full formula's effects.
Holistic Balance: The exact dosage and combination in a formula affect the entire body. Never try to mix or alter these formulas at home based on internet articles.

Diet & Daily Home Use

1. Home Recipes

Fu Pen Zi and Gou Qi Tea:
- Ingredients: 5g dried Fu Pen Zi (Raspberry), 5g Gou Qi Zi (Goji Berry), warm water.
- Method: Steep in a cup for 5 minutes. You can refill with water until the taste fades.
- Use Case: Great for mild fatigue, weak knees, or mild dizziness. Drink 3 to 4 times a week.
- Avoid if: You have "excess fire" (dark urine, dry stools).
Fu Pen Zi Yam Porridge:
- Ingredients: 3g dried Fu Pen Zi (Raspberry), 10g Chinese yam, 50g rice, water.
- Method: Simmer everything together for 30 minutes until the porridge is cooked.
- Use Case: Good for a weak digestive system paired with a weak lower back. Eat 1 to 2 times a week for breakfast.
- Avoid if: You have damp-heat or a thick, greasy tongue coating.

2. Preparation and Brewing

Raw vs. Processed: Raw Fu Pen Zi (Raspberry) is mild and great for daily use. "Salt-processed" versions are stronger for clinical Kidney treatments.
Brewing: It can be boiled directly with other ingredients or steeped in hot water for tea. Always remember that medicinal herb dosages are different from casual food dosages.

3. Dosage and Cycle

Clinical Dosage: Usually 6 to 12 grams.
Dietary Dosage: Keep it small, around 3 to 5 grams for mild daily support.
Duration: Do not use continuously for more than one month. Take a break or consult a doctor before resuming.

Contraindications & Safety Warnings

1. Who Should Avoid It?

Excess Fire or Damp-Heat: If you have dark/painful urination, constipation, or a thick tongue coating, this herb will make it worse.
Pregnant and Nursing Women: Avoid self-prescribing due to a lack of safety data.
Special Groups: Children, the elderly, and those with poor liver/kidney function should only use this under a doctor's strict guidance.
Allergies: Do not use if you are allergic to plants in the Rosaceae family.

2. Drug Interactions and Dietary Notes

Medication Warnings: It may interact with blood thinners, blood pressure medications, or blood sugar medications. Always consult your doctor or pharmacist if you are on Western medications to avoid unexpected drops in blood pressure or blood sugar.

3. Adverse Reactions and Overdose Risks

Side Effects: Taking too much can cause "internal heat" symptoms like mouth sores, sore throat, or constipation. The astringent nature can also cause severe bloating and indigestion if overused.
Emergency Action: If you experience allergic reactions, continuous vomiting, breathing difficulties, or a sudden worsening of symptoms, stop use immediately and seek medical attention.

Frequently Asked Questions About Fu Pen Zi

What is Fu Pen Zi? Are Jin Ying Zi and Sang Shen the same?

Official Fu Pen Zi (覆盆子) is the dried fruit of Rubus chingii. The pharmacopoeial name is Rubi Fructus. Jin Ying Zi is sour-astringent and neutral: secures essence, reduces urination, secures flooding, stops vaginal discharge, astringes the intestines and stops diarrhea. Sang Shen is sweet-sour and cold: nourishes yin, supplements Blood, generates fluid and moistens dryness. Write Fu Pen Zi. Use caution in Kidney heat with short, inhibited urine.

What are the TCM properties and traditional uses of Fu Pen Zi?

According to the Chinese Pharmacopoeia, Fu Pen Zi is sweet, sour and warm, enters the Liver and Kidney channels, and acts to benefit the Kidney, secure essence, reduce urination, nourish the Liver and brighten the eyes. It is used for seminal emission and spermatorrhea, enuresis and frequent urination, impotence and premature ejaculation, and dim vision. Sweet-sour, warm and astringent, it suits Kidney vacuity that fails to secure—not yin-vacuity fire or short, inhibited urine.

How do you choose Fu Pen Zi versus Jin Ying Zi? Can Sang Shen replace it?

Raspberry is warm, benefits the Kidney and also nourishes the Liver and brightens the eyes. Cherokee rose is astringent, secures essence, stops vaginal discharge and also astringes the intestines. Mulberry fruit is cold and nourishes yin and Blood; it cannot replace reducing urination by equal weight. Commercial raspberry tea is not equal-weight pieces.

What is the usual dosage? Can it be drunk daily as an essence tea?

The pharmacopoeial decoction dose is 6–12 g. It is not a four-season “raspberry essence tea.” Yin-vacuity fire only dries further as it warms. Seminal emission and frequent urination need a practitioner to name a short course; they do not replace urologic assessment.

What are the contraindications? Can it be used in pregnancy?

Unsuitable in yin-vacuity fire and short, inhibited urine. Pregnancy needs a practitioner’s assessment. Stop if dry mouth, reduced urine or constipation appears. Blood in the urine and difficulty passing urine need medical care.

Can Fu Pen Zi benefit the Kidney, secure essence, reduce urination, nourish the Liver and brighten the eyes?

It can help seminal emission and frequent urination from Kidney vacuity. It joins lycium, dodder, schisandra and plantago seed in Wu Zi Yan Zong Wan. It benefits the Kidney, secures essence, reduces urination, nourishes the Liver and brightens the eyes—not a specific for every infertility or every eye disease.

Can Fu Pen Zi be drunk daily as an essence, urine or eye tea?

Kidney vacuity that fails to secure may enter a short formula; yin-vacuity fire only dries further as it warms. “Raspberry must secure essence” does not replace urologic assessment. Benefiting the Kidney, securing essence, reducing urination, nourishing the Liver and brightening the eyes should name 6–12 g.

How do you choose among Fu Pen Zi, Jin Ying Zi, Sang Shen, Gou Qi Zi and Qian Shi?

Raspberry is sweet-sour and warm: benefits the Kidney, secures essence, reduces urination, nourishes the Liver and brightens the eyes—seminal emission, frequent urination and dim vision. Cherokee rose is sour-astringent and neutral: secures essence, reduces urination, secures flooding, stops vaginal discharge, astringes the intestines and stops diarrhea—slippery discharge. Mulberry fruit is sweet-sour and cold: nourishes yin, supplements Blood, generates fluid and moistens dryness—insufficiency of yin and Blood. Lycium fruit is sweet and neutral: nourishes the Liver and Kidney, boosts essence and brightens the eyes—Liver-Kidney yin vacuity. Euryale is sweet-astringent and neutral: benefits the Kidney, secures essence, supplements the Spleen, stops diarrhea, removes dampness and stops vaginal discharge—Spleen and Kidney vacuity. Seminal emission and frequent urination favor Fu Pen Zi (Wu Zi Yan Zong Wan); slippery discharge favors Jin Ying Zi; insufficiency of yin and Blood favors Sang Shen; dim vision with essence depletion favors Gou Qi Zi; vaginal discharge with loose stool favors Qian Shi. They may be paired after pattern differentiation; short, inhibited urine forbids large Fu Pen Zi and Jin Ying Zi.

Which herbs is Fu Pen Zi combined with? What are the representative formulas?

Kidney-vacuity seminal emission joins lycium, dodder, schisandra and plantago seed in Wu Zi Yan Zong Wan. Frequent urination may join cherokee rose and euryale after pattern differentiation. Write Fu Pen Zi 6–12 g; do not replace reducing urination with mulberry fruit by equal weight.

How do you choose and store Fu Pen Zi?

Choose aggregate fruits, yellow-green to pale yellow-brown, a blunt round apex, a fruit-stalk scar at the base, a faint odor and a slightly sour-astringent taste. Moldy, scorched or dirty lots are discarded. Store dry. Buy pharmacopoeial Fu Pen Zi; do not replace benefiting the Kidney, securing essence, reducing urination, nourishing the Liver and brightening the eyes with cherokee rose or mulberry fruit by equal weight.

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Medical Disclaimer — This article is provided for educational purposes only and describes traditional Chinese medicine concepts. It is not medical advice, and it is not intended to diagnose, treat, cure or prevent any disease. Always consult a qualified practitioner before using any herb, particularly if you are pregnant, nursing, taking medication or managing a diagnosed condition.