# Phytoene and Phytofluene (SkinAx2)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/phytoene-and-phytofluene
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-24
**Evidence Score:** 2 / 10
**Category:** Other
**Also Known As:** Phytoene, Phytofluene, SkinAx2, Colorless carotenoids, 40-carbon carotenoids, Carotenoid precursors, UV-absorbing carotenoids

## Overview

Phytoene and phytofluene are colorless carotenoids found in SkinAx2 that provide UV protection by absorbing specific wavelengths (phytoene at 286 nm UVB, phytofluene at 348 nm UVA). These compounds demonstrate [antioxidant](/ingredients/condition/antioxidant) and [anti-inflammatory](/ingredients/condition/inflammation) properties that may support [skin health](/ingredients/condition/skin-health).

## Health Benefits

• UV protection: Acts as UV absorbers (phytoene at 286 nm UVB, phytofluene at 348 nm UVA) - evidence from mechanistic studies only
• Antioxidant activity: [Free radical scaveng](/ingredients/condition/antioxidant)ing properties demonstrated in preliminary studies
• [Anti-inflammatory](/ingredients/condition/inflammation) effects: May reduce inflammation, though human clinical evidence is absent
• Potential DNA damage protection: Referenced reduction in lymphocyte DNA damage from prior works, but no direct clinical trials provided
• Possible cancer protection: Preliminary evidence suggests effects in leukemia, breast, and prostate cancer models, but no human RCTs available

## Mechanism of Action

Phytoene absorbs UVB radiation at 286 nm while phytofluene targets UVA at 348 nm, creating a dual-spectrum [photoprotect](/ingredients/condition/skin-health)ive barrier. These carotenoids scavenge [free radical](/ingredients/condition/antioxidant)s through their conjugated double bond systems and may modulate [inflammatory pathway](/ingredients/condition/inflammation)s, though specific molecular targets require further investigation.

## Clinical Summary

Evidence for phytoene and phytofluene comes primarily from mechanistic and preliminary in vitro studies demonstrating UV absorption and [antioxidant](/ingredients/condition/antioxidant) properties. Human clinical trials are limited, with most research focusing on other carotenoids in the same family. The [anti-inflammatory](/ingredients/condition/inflammation) effects mentioned in available data appear incomplete, suggesting ongoing research. Current evidence is largely theoretical and requires robust clinical validation.

## Nutritional Profile

Phytoene and Phytofluene (marketed as SkinAx2) are colorless carotenoid precursors, not macronutrient sources. As concentrated bioactive extracts, they are not characterized by macronutrient, mineral, or fiber content in conventional nutritional terms. Key bioactive compounds: Phytoene (a 15-carbon polyene carotenoid precursor with 3 conjugated double bonds, UV absorption peak ~286 nm in UVB range) and Phytofluene (a carotenoid with 5 conjugated double bonds, UV absorption peak ~348 nm in UVA range, exhibiting natural fluorescence). SkinAx2 is a proprietary blend typically derived from tomato and grapefruit sources, standardized to deliver specific ratios of these two carotenoids alongside complementary [antioxidant](/ingredients/condition/antioxidant)s (vitamin C, zinc, and grape extract depending on formulation). Phytoene and phytofluene together typically constitute approximately 50% of total carotenoids in human plasma under supplementation, reflecting relatively high bioavailability compared to colored carotenoids. Both are lipophilic compounds requiring dietary fat for absorption via micellarization in the gut. Clinical supplementation doses studied range from 10–20 mg/day combined. Bioavailability is enhanced by lipid co-ingestion; they are transported in plasma via LDL and VLDL lipoproteins and accumulate in skin tissue, which is the primary target organ for their proposed [photoprotect](/ingredients/condition/skin-health)ive and antioxidant functions.

## Dosage & Preparation

No clinically studied dosage ranges for SkinAx2 (extract, powder, or standardized forms) are specified in available research. Studies focus only on dietary intake levels from foods like tomatoes, deemed safe without quantified supplementation amounts. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Safety data for isolated phytoene and phytofluene supplements is limited due to their recent introduction as targeted ingredients. As carotenoids, they are generally considered safe, but potential interactions with fat-soluble vitamin absorption or medications affecting lipid [metabolism](/ingredients/condition/weight-management) are unknown. No specific contraindications have been established for pregnancy or nursing. Users taking anticoagulant medications should consult healthcare providers due to potential effects on vitamin K absorption.

## Scientific Research

Limited human clinical evidence exists for SkinAx2, with most data coming from preclinical or indirect studies. One study notes protection against light-induced erythema in skin, but no details on design, sample size, or outcomes are provided. No PubMed PMIDs for key human trials or meta-analyses are available in the research dossier.

## Historical & Cultural Context

No historical context or traditional medicine use is documented for phytoene or phytofluene. They are modernly recognized as biosynthetic intermediates in plants and dietary components, with no references to traditional systems like Ayurveda or TCM.

## Synergistic Combinations

Lycopene, beta-carotene, vitamin E, vitamin C, astaxanthin

## Frequently Asked Questions

### What wavelengths do phytoene and phytofluene absorb?

Phytoene absorbs UVB radiation at 286 nm wavelength, while phytofluene targets UVA radiation at 348 nm. This dual absorption pattern provides broad-spectrum UV protection for skin cells.

### How much phytoene and phytofluene is in SkinAx2?

Specific dosages of phytoene and phytofluene in SkinAx2 formulations vary by manufacturer. Most supplements contain these compounds in microgram amounts, though standardized dosing recommendations are not yet established.

### Are phytoene and phytofluene better than other carotenoids?

Phytoene and phytofluene offer unique UV absorption wavelengths compared to lycopene or beta-carotene. However, clinical evidence comparing their effectiveness to other carotenoids for skin protection is currently insufficient.

### Can you get phytoene and phytofluene from food?

These colorless carotenoids are found in tomatoes, carrots, and other carotenoid-rich foods in small amounts. However, achieving therapeutic levels typically requires concentrated supplementation like SkinAx2.

### How long does it take for phytoene and phytofluene to work?

Carotenoids generally accumulate in skin tissue over 4-8 weeks of supplementation. However, specific timeframes for phytoene and phytofluene efficacy have not been established in human clinical trials.

### What is the difference between phytoene and phytofluene in SkinAx2?

Phytoene and phytofluene are both colorless carotenoid precursors that work synergistically in SkinAx2, with phytoene absorbing UVB wavelengths (286 nm) and phytofluene absorbing UVA wavelengths (348 nm). Together, they provide broader UV spectrum coverage than either compound alone. Phytofluene is oxidized further along the carotenoid synthesis pathway compared to phytoene, which may influence their distinct absorption properties and biological activities.

### Is SkinAx2 safe to use alongside other skin supplements and topical products?

SkinAx2 contains phytoene and phytofluene, which have no known interactions with common oral supplements or topical skincare ingredients based on available safety data. However, since these are carotenoid precursors that may accumulate in skin tissue, concurrent use with other high-dose carotenoid supplements warrants caution. Consult a healthcare provider before combining SkinAx2 with prescription retinoids or photosensitizing medications.

### What does current scientific evidence show about SkinAx2's real-world effectiveness for skin protection?

Current evidence for phytoene and phytofluene in SkinAx2 is based primarily on mechanistic and preliminary laboratory studies demonstrating UV absorption and antioxidant activity, rather than large-scale human clinical trials. While in vitro data suggests potential DNA damage protection in lymphocytes, clinical evidence in humans remains limited and published studies are few. More rigorous human clinical trials are needed to establish whether SkinAx2 provides meaningful skin protection benefits comparable to established sunscreen or antioxidant approaches.

---

*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
*License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*