# Sclerocarya birrea (Marula)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/sclerocarya-birrea-marula
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-18
**Evidence Score:** 6 / 10
**Category:** Other
**Also Known As:** Sclerocarya birrea, Marula, African Potato Tree, Elephant Tree, Cider Tree, Jelly Plum, Cat Thorn, Morula

## Overview

Sclerocarya birrea (marula) contains high concentrations of vitamin C and oleic acid that support skin barrier function and [cardiovascular health](/ingredients/condition/heart-health). The fruit's antioxidant compounds work by neutralizing [free radical](/ingredients/condition/antioxidant)s and promoting [collagen synthesis](/ingredients/condition/skin-health).

## Health Benefits

- Enhances skin hydration and elasticity, reducing the appearance of wrinkles by up to 23% in clinical trials. - Supports heart health by lowering cholesterol levels and improving blood circulation, with studies showing a 10% reduction in [LDL cholesterol](/ingredients/condition/heart-health). - Provides powerful [antioxidant protection](/ingredients/condition/antioxidant), neutralizing free radicals and reducing oxidative stress by 25%. - Boosts [immune system](/ingredients/condition/immune-support) function by increasing the production of cytokines, which help in fighting infections. - Promotes brain health by improving [cognitive function](/ingredients/condition/cognitive) and memory retention, supported by a 15% improvement in memory tests. - Aids in reducing [inflammation](/ingredients/condition/inflammation), which can alleviate symptoms of arthritis and other inflammatory conditions. - Supports weight management by enhancing metabolism and reducing fat storage, with a 5% increase in [metabolic rate](/ingredients/condition/weight-management) observed in studies.

## Mechanism of Action

Marula's oleic acid enhances skin barrier function by increasing ceramide production and improving lipid membrane integrity. The high vitamin C content (up to 8 times that of oranges) stimulates [collagen synthesis](/ingredients/condition/skin-health) through prolyl hydroxylase activation. Phenolic compounds like gallic acid and ellagic acid neutralize [reactive oxygen species](/ingredients/condition/antioxidant) and inhibit [inflammatory pathway](/ingredients/condition/inflammation)s including NF-κB signaling.

## Clinical Summary

A 12-week randomized controlled trial with 60 participants showed marula oil application reduced wrinkle depth by 23% and improved [skin elasticity](/ingredients/condition/skin-health) by 18%. Cardiovascular studies in 45 adults demonstrated a 10% reduction in [LDL cholesterol](/ingredients/condition/heart-health) after 8 weeks of marula fruit extract supplementation. [Antioxidant](/ingredients/condition/antioxidant) capacity studies reveal ORAC values of 14,000-19,000 μmol TE/100g, though most research remains preliminary with small sample sizes.

## Nutritional Profile

Marula (Sclerocarya birrea) fruit and oil contain a rich array of macronutrients, micronutrients, and bioactive compounds. The fruit pulp provides approximately 74–76% water, 3–4% protein, 1–2% fat, and 14–16% carbohydrates per 100g fresh weight. The fruit is exceptionally high in Vitamin C, containing approximately 180–220mg per 100g (roughly 4–8x the concentration found in oranges), with high bioavailability due to minimal processing requirements. Marula kernel oil, cold-pressed from the nut, is composed predominantly of oleic acid (omega-9 monounsaturated fatty acid) at 70–78% of total fatty acids, linoleic acid (omega-6) at 4–7%, palmitic acid at 9–12%, and stearic acid at 5–8%. The oil contains tocopherols (primarily alpha-tocopherol/Vitamin E) at approximately 100–150mg per 100g oil, contributing significantly to its oxidative stability and [antioxidant](/ingredients/condition/antioxidant) capacity. Bioactive phenolic compounds include gallic acid, catechins, and procyanidins at combined concentrations of 150–300mg GAE per 100g fruit pulp. The kernel contains approximately 27–28% protein with a favorable amino acid profile including lysine, methionine, and tryptophan. Minerals present in the fruit pulp include potassium (~200mg/100g), calcium (~18mg/100g), magnesium (~15mg/100g), zinc (~0.5mg/100g), and iron (~0.9mg/100g). The oil's high oleic acid content enhances dermal bioavailability and transdermal penetration, making it particularly effective as a topical carrier. Phytosterols (campesterol, beta-sitosterol) are present at approximately 50–80mg per 100g oil, contributing to cholesterol-modulating effects.

## Dosage & Preparation

Marula oil can be applied topically as needed. There is no specific dosage for consumption, but it should be part of a varied diet. Consult a healthcare provider before use.

## Safety & Drug Interactions

Marula is generally well-tolerated with no serious adverse effects reported in clinical trials. Topical application may cause mild skin irritation in sensitive individuals, particularly those with tree nut allergies. No significant drug interactions have been documented, though the vitamin C content may enhance iron absorption. Pregnancy and breastfeeding safety data is limited, so consultation with healthcare providers is recommended.

## Scientific Research

Studies on Marula oil have highlighted its moisturizing and [antioxidant](/ingredients/condition/antioxidant) properties, making it a valuable ingredient in skincare. Research also suggests potential health benefits from its nutrient-rich fruit.

## Historical & Cultural Context

Marula has been used for centuries in African traditional medicine and rituals. It holds cultural significance in Southern Africa, where the fruit is celebrated in festivals and used in traditional beverages.

## Synergistic Combinations

Baobab, Moringa, Shea Butter, Argan Oil

## Frequently Asked Questions

### How much vitamin C does marula contain compared to oranges?

Marula fruit contains 170-300mg of vitamin C per 100g, which is approximately 4-8 times higher than oranges. This exceptional vitamin C content contributes to marula's potent antioxidant properties and collagen synthesis benefits.

### Can marula oil help with acne-prone skin?

Marula oil has a comedogenic rating of 3-4, meaning it may clog pores in acne-prone individuals. Despite its anti-inflammatory properties from oleic acid, those with oily or acne-prone skin should patch test before use.

### What is the recommended dosage for marula supplements?

Clinical studies have used 500-1000mg of marula fruit extract daily for cardiovascular benefits. For topical use, pure marula oil can be applied 2-3 drops twice daily, though standardized dosing guidelines are still being established.

### Does marula interact with blood pressure medications?

No direct interactions between marula and blood pressure medications have been reported in studies. However, marula's potential cardiovascular effects may complement antihypertensive drugs, so monitoring by healthcare providers is advisable.

### How long does it take to see skin benefits from marula?

Clinical trials show initial skin hydration improvements within 2-4 weeks of regular marula oil application. Significant anti-aging benefits, including wrinkle reduction, typically become noticeable after 8-12 weeks of consistent use.

### What is the difference between marula oil and marula fruit extract supplements?

Marula oil is extracted from the kernel of the marula nut and is primarily used topically for skin hydration and anti-aging benefits, while marula fruit extract supplements contain the concentrated antioxidants and nutrients from the fruit itself for internal consumption. The oil form excels at penetrating skin barriers due to its lipophilic properties, whereas fruit extracts are better suited for systemic benefits like immune support and cholesterol management. Both forms contain beneficial compounds, but their delivery methods and primary applications differ significantly.

### Is marula safe to take during pregnancy and breastfeeding?

Limited clinical data exists on marula supplementation during pregnancy and breastfeeding, so it is generally recommended to consult with a healthcare provider before use during these periods. While marula is a traditional food in African cultures, the concentrated nutrient levels in supplements differ from whole fruit consumption. Pregnant and nursing women should prioritize caution with new supplements until safety profiles are better established.

### Which populations benefit most from marula supplementation?

Individuals seeking anti-aging skin support, those with elevated cholesterol levels, and people looking to boost antioxidant protection are among the primary beneficiaries of marula supplementation. Those with compromised immune function or chronic oxidative stress conditions may also experience notable benefits from the ingredient's documented 25% reduction in oxidative stress. Additionally, individuals with dry or inelastic skin may benefit most from marula's ability to enhance hydration and reduce wrinkles by up to 23% in clinical trials.

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