INGREDIENT SPOTLIGHT

Red-Skin Peanut/Huā Shēng 花生

Arachis hypogaea — the "longevity nut" with its red skin on,
used in Chinese tonic tradition to nourish blood, moisten the lungs, and support the spleen.

FORMULA ROLE

Why LunarSip uses it.

Red-skin peanut gives LunarSip's Five Red Vitality Tea its mellow, nutty depth. In Chinese home tradition the red skin is left on deliberately — it is the part believed to nourish blood — and the nut is simmered with red date, adzuki bean, goji, and brown sugar for women recovering their energy. In this 6-ingredient blend, peanut adds protein-rich body and a toasted warmth that softens the sweetness of longan and sugar.
Red-skin peanuts (Hua Sheng) – LunarSip Chinese herbal tea ingredient

HOW IT'S USED

The longevity nut, red skin and all.

In Chinese herbal practices, Huā Shēng — 花生, also called 長生果, "the longevity fruit" — is used whole with its red seed coat (花生衣), which is the part most valued in tonic recipes. Its traditional actions are to strengthen the spleen and harmonize the stomach (健脾和胃), moisten the lungs (潤肺), and, through the red skin, nourish blood and support its containment (養血止血). Red-skin peanuts are one of the five red foods in the Five Red tonic, and are simmered with red date and brown sugar in kitchens across southern China.

In Western nutrition science, Arachis hypogaea is studied for its resveratrol, proanthocyanidins concentrated in the red skin, monounsaturated fats, plant protein, niacin, and vitamin E. Modern pharmacology has examined the antioxidant and cardiovascular-supportive activity of peanut skin polyphenols, and peanut consumption has been studied in large cohorts for its association with metabolic and heart health markers.

THE EVIDENCE

What the research says.

Modern research on peanuts has focused on the polyphenols of the red skin, resveratrol, and cardiovascular and metabolic health markers.
SYSTEMATIC REVIEW · META-ANALYSIS

Peanut and cardiovascular disease risk factors: A systematic review and meta-analysis

Critical Reviews in Food Science and Nutrition · 2020

A 2020 meta-analysis pooled 13 randomized controlled trials on peanut intake. Research suggests peanuts had no significant effect on body weight, blood pressure, LDL or fasting glucose, but were associated with a modest rise in HDL ('good') cholesterol, most clearly in healthy adults consuming peanuts for more than 12 weeks.

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SYSTEMATIC REVIEW · CLINICAL STUDIES

Peanut (Arachis hypogaea L.) seeds and by-products in metabolic syndrome and cardiovascular disorders: A systematic review of clinical studies

Phytomedicine · 2024

A 2024 systematic review of 19 clinical studies noted that raw peanuts and peanut-containing foods were associated with improvements in blood glucose, insulin, lipids, body mass index, waist circumference and endothelial function. The authors caution that larger, longer and more diverse trials are still needed before firm conclusions can be drawn.

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PHYTOCHEMISTRY REVIEW · PEANUT SKIN

Phenolic Fraction from Peanut (Arachis hypogaea L.) By-product: Innovative Extraction Techniques and New Encapsulation Trends for Its Valorization

Food and Bioprocess Technology · 2023

A 2023 review describes the red peanut skin (花生衣) as a concentrated source of proanthocyanidins and procyanidins. It summarises their reported antioxidant-related bioactivity, the extraction methods used to recover them, and encapsulation strategies that may improve their stability and bioavailability for food and pharmaceutical uses.

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IN VITRO · PHYTOCHEMISTRY

Anti-inflammatory and anti-melanogenic proanthocyanidin oligomers from peanut skin

Biological & Pharmaceutical Bulletin · 2012

In cultured human cell lines, a 2012 study isolated eleven proanthocyanidins (including one new trimer) from peanut skin. The extract and purified dimers and trimers reduced inflammatory cytokines (TNF-alpha, IL-6) and melanin production in vitro, suggesting peanut-skin polyphenols merit further study for inflammation and skin pigmentation.

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FOUND HERE

In these LunarSip formulas.

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