# Safflower (Carthamus tinctorius)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/safflower
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-19
**Evidence Score:** 6 / 10
**Category:** Traditional Chinese Medicine
**Also Known As:** Carthamus tinctorius, False saffron, American saffron, Bastard saffron, Dyer's saffron, Hong hua, Kusum flower

## Overview

Safflower (Carthamus tinctorius) contains over 50 flavonoid derivatives and quinochalcone compounds that provide antioxidant and anti-inflammatory effects. The primary bioactive compound Hydroxysafflor yellow A (HSYA) neutralizes [reactive oxygen species](/ingredients/condition/antioxidant) and modulates [inflammatory pathway](/ingredients/condition/inflammation)s.

## Health Benefits

• Antioxidant activity through 50+ flavonoid derivatives and [serotonin](/ingredients/condition/mood)-based alkaloids that neutralize [reactive oxygen species](/ingredients/condition/antioxidant) (evidence quality: in-vitro studies)
• [Anti-inflammatory](/ingredients/condition/inflammation) effects via quinochalcone compounds, particularly Hydroxysafflor yellow A (HSYA) (evidence quality: traditional pharmacological studies)
• [Antimicrobial](/ingredients/condition/immune-support) properties through multiple mechanisms including protein synthesis inhibition and bacterial membrane disruption (evidence quality: laboratory studies)
• [Cardiovascular](/ingredients/condition/heart-health) support from high linoleic acid content (55.1-77.0%) in safflower oil (evidence quality: compositional analysis only)
• Potential melanin regulation through tyrosinase enzyme pathway inhibition by alkaloid compounds (evidence quality: preliminary mechanistic studies)

## Mechanism of Action

Safflower's bioactive compounds, particularly Hydroxysafflor yellow A (HSYA) and [serotonin](/ingredients/condition/mood)-based alkaloids, neutralize [reactive oxygen species](/ingredients/condition/antioxidant) through direct antioxidant activity. The quinochalcone compounds modulate inflammatory pathways by inhibiting [pro-inflammatory cytokine](/ingredients/condition/inflammation) production. These flavonoid derivatives work synergistically to protect cells from oxidative damage and reduce inflammatory responses.

## Clinical Summary

Current evidence for safflower comes primarily from in-vitro studies demonstrating [antioxidant activity](/ingredients/condition/antioxidant) of its 50+ flavonoid derivatives. Traditional pharmacological studies have identified [anti-inflammatory](/ingredients/condition/inflammation) effects of quinochalcone compounds, specifically HSYA. Human clinical trials are limited, with most research conducted in cell culture and animal models. The evidence quality remains preliminary, requiring more robust human studies to confirm therapeutic benefits.

## Nutritional Profile

Safflower (Carthamus tinctorius) petals and seeds have distinct nutritional profiles. PETALS (medicinal part): Rich in bioactive pigments including Hydroxysafflor Yellow A (HSYA) at approximately 1.2–3.5% dry weight, Safflor Yellow B, and carthamin (red pigment) at 0.3–0.6% dry weight. Contains 50+ flavonoids including kaempferol, quercetin, luteolin, and their glycosides at combined concentrations of 2–8% dry weight. [Serotonin](/ingredients/condition/mood)-based alkaloids (N-feruloylserotonin, N-(p-coumaroyl)serotonin) present at 0.1–0.5% dry weight. Polysaccharides (predominantly arabinogalactans) at 15–25% dry weight with documented [immunomodulatory](/ingredients/condition/immune-support) activity. Minimal macronutrient contribution from petals due to typical usage in small medicinal doses. SEEDS (edible oil source): High fat content at 30–45% of seed weight, predominantly polyunsaturated fatty acids — linoleic acid (omega-6) comprises 68–83% of fatty acid profile, oleic acid 8–21% (varies by cultivar: high-oleic varieties contain 75–80% oleic acid). Saturated fats low at 6–8% (palmitic + stearic). Vitamin E (tocopherols) in seed oil at 340–680 mg/kg oil, primarily gamma-tocopherol. Protein content in defatted seed meal: 15–20% by weight, containing essential amino acids including lysine (~3.5 g/100g protein) and methionine (~1.8 g/100g protein). Dietary fiber in whole seeds: 10–14% dry weight (mix of soluble and insoluble). Minerals in seeds include calcium (~100 mg/100g), phosphorus (~550 mg/100g), potassium (~520 mg/100g), magnesium (~65 mg/100g), and iron (~3.5 mg/100g). Phytosterols in seed oil at 2,500–4,500 mg/kg, predominantly beta-sitosterol. BIOAVAILABILITY NOTES: HSYA demonstrates moderate oral bioavailability (~15–30%) with peak plasma concentration at 30–60 minutes post-ingestion; bioavailability enhanced when consumed with warm water per traditional preparation. Linoleic acid from safflower oil shows high bioavailability (~95%). Flavonoid glycosides require gut microbial hydrolysis for aglycone release, reducing effective absorption to an estimated 10–25% of ingested dose. Fat-soluble vitamin E bioavailability from the oil is estimated at 50–80%, improved with concurrent dietary fat intake.

## Dosage & Preparation

No clinically studied dosage ranges are available in the current research. The dossier lacks specific information on standardized preparations, extract concentrations, or human dosing protocols. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Safflower is generally recognized as safe when used as a food ingredient or traditional medicine. Potential side effects may include allergic reactions in individuals sensitive to plants in the Asteraceae family. Safflower may interact with anticoagulant medications due to its potential blood-thinning properties. Pregnancy and breastfeeding safety has not been established through clinical studies, so use should be avoided during these periods.

## Scientific Research

The provided research dossier does not contain specific human clinical trials, randomized controlled trials, or meta-analyses with PubMed PMIDs. The available evidence consists primarily of phytochemical composition studies and traditional pharmacological property analyses rather than clinical trial data.

## Historical & Cultural Context

While categorized as a Traditional Chinese Medicine herb and global traditional remedy, the provided research does not detail specific historical uses or traditional preparation methods. The dossier focuses on modern phytochemical analysis rather than ethnobotanical history.

## Synergistic Combinations

Turmeric, Green tea extract, Vitamin E, Omega-3 fatty acids, Quercetin

## Frequently Asked Questions

### What is Hydroxysafflor yellow A in safflower?

Hydroxysafflor yellow A (HSYA) is the primary bioactive quinochalcone compound in safflower responsible for its anti-inflammatory effects. HSYA has been studied for its ability to modulate inflammatory pathways and protect against oxidative damage.

### How many flavonoids does safflower contain?

Safflower contains over 50 flavonoid derivatives that contribute to its antioxidant activity. These compounds work alongside serotonin-based alkaloids to neutralize reactive oxygen species and provide cellular protection.

### Is safflower safe to take with blood thinners?

Safflower may interact with anticoagulant medications due to its potential blood-thinning properties. Consult with a healthcare provider before combining safflower supplements with warfarin or other blood-thinning medications.

### What's the difference between safflower oil and safflower extract?

Safflower oil is primarily used for cooking and contains mainly fatty acids, while safflower extract concentrates the bioactive compounds like HSYA and flavonoids. The extract contains the medicinal compounds studied for antioxidant and anti-inflammatory benefits.

### Can safflower cause allergic reactions?

Yes, safflower may cause allergic reactions in individuals sensitive to plants in the Asteraceae family, which includes ragweed, chrysanthemums, and daisies. Symptoms may include skin rash, respiratory irritation, or digestive upset.

### What is the most bioavailable form of safflower supplement?

Safflower extract standardized to hydroxysafflor yellow A (HSYA) typically offers superior bioavailability compared to whole herb powder, as the extraction process concentrates the active quinochalcone compounds. Liquid extracts and standardized capsules allow for better absorption of the fat-soluble and water-soluble flavonoid derivatives. The bioavailability can be further enhanced when safflower is consumed with dietary fat, which facilitates the absorption of its lipophilic antioxidant components.

### Is safflower safe to use during pregnancy and breastfeeding?

Safflower is traditionally contraindicated during pregnancy due to its historical use as an emmenagogue and potential uterotonic effects, though clinical safety data in pregnant women is limited. Pregnant and breastfeeding women should avoid supplemental safflower without consulting a healthcare provider. The safety profile for dietary amounts found in foods is generally considered more favorable, but supplemental doses warrant medical oversight.

### How strong is the clinical research evidence for safflower's health benefits?

Most evidence for safflower's antioxidant and anti-inflammatory effects comes from in-vitro studies and traditional pharmacological research rather than large-scale human clinical trials, limiting the strength of current evidence. Several small human studies have examined safflower's effects on lipid profiles and inflammatory markers with mixed results. While traditional use supports its safety and efficacy, more rigorous clinical trials are needed to establish definitive dosing and effectiveness for specific health conditions in humans.

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