Not all antioxidants are created equal. This statement, which sounds like a cliché, has a very precise biochemical basis when applied to astaxanthin. This marine-derived carotenoid not only has a documented antioxidant capacity far superior to that of more well-known antioxidants, but it also has specific mechanisms of action on the skin that make it one of the most interesting ingredients in current nutricosmetics.
What is astaxanthin and where does it come from?
Astaxanthin is a carotenoid—from the same group as beta-carotene and lycopene—produced primarily by the microalga Haematococcus pluvialis as a defense mechanism against oxidative stress, ultraviolet light, and nutrient deprivation. It is the pigment that gives salmon, trout, flamingos, and crustaceans their characteristic pinkish-red color: these animals do not produce astaxanthin, but accumulate it through the food chain.
Astaxanthin used in quality supplementation—like Fuji Chemical's AstaReal®, which LEVIAL contains—comes from the controlled cultivation of Haematococcus pluvialis under optimized conditions to maximize the concentration of the carotenoid. The source and extraction process directly determine the purity, stability, and bioavailability of the final ingredient.
Antioxidant Capacity: The ORAC Scale in Perspective
The antioxidant capacity of astaxanthin has been evaluated in multiple studies using different methodologies. Compared to other well-known antioxidants, the data are striking: its ability to neutralize singlet oxygen—one of the most reactive forms of oxidative species—is approximately 6,000 times greater than vitamin C, 800 times greater than CoQ10, and 550 times greater than vitamin E.
This superiority is not only quantitative: astaxanthin has a unique structural characteristic that differentiates it from other carotenoids. Its molecule completely crosses the cell membrane—with one part in the lipid interior and another in the aqueous exterior—allowing it to protect both the inside and outside of the cell simultaneously. This property, described as "double membrane protection," is not present in other commonly used antioxidants.
What astaxanthin does for the skin: photoaging and oxidative stress
In the skin context, astaxanthin acts on several fronts simultaneously. It neutralizes free radicals generated by UV radiation before they can damage cellular DNA and degrade collagen fibers. It inhibits the activation of metalloproteinases (MMPs)—enzymes that degrade collagen and elastin in the extracellular matrix. It reduces skin inflammation through the inhibition of NF-kB and the reduction of pro-inflammatory cytokines such as IL-1β and TNF-α.
Additionally, astaxanthin has a documented effect on skin hydration: studies by Tominaga et al. observed improvements in the moisture content of the stratum corneum and elasticity parameters after 6 weeks of oral supplementation with 6 mg/day in Japanese women. LEVIAL provides 25 mg of AstaReal® per vial, a functional dose well above the ranges evaluated in available studies.
AstaReal®: Why the source matters
AstaReal® is the registered trademark for natural astaxanthin from Fuji Chemical Industry Co., Japan. It is the astaxanthin ingredient with the highest number of published clinical studies and the most widely used in premium nutricosmetic formulations worldwide. Its production process ensures a standardized concentration of natural astaxanthin (trans-astaxanthin) and the absence of synthetic astaxanthin, which has a different biological activity profile.
In the supplement market, there is synthetic astaxanthin produced from petrochemicals, which is significantly cheaper but does not have the same bioavailability profile or the same results in clinical studies as natural astaxanthin from Haematococcus pluvialis. The choice of AstaReal® in the LEVIAL formula is based on criteria of traceability and evidence, not cost.
Clinical Studies: What has been measured and what has been observed
Studies with oral astaxanthin on skin parameters show consistent results in three areas: improved skin hydration, reduction of fine wrinkles, and improved texture. Tominaga et al. (2012) observed significant improvements in hydration, elasticity, and spot reduction in a double-blind trial with 65 women. Hussein et al. have documented the protective activity against UV damage in studies with astaxanthin supplementation.
A particularly relevant fact is that oral astaxanthin acts synergistically with topical photoprotection: it does not replace it, but adds a level of systemic antioxidant protection that sunscreen cannot provide. In a formula like LEVIAL, combined with resveratrol, pomegranate, and antioxidant vitamins, this synergy is amplified.
How does it combine with other antioxidants?
Astaxanthin does not act in isolation in the body: it is part of an antioxidant network in which different compounds regenerate and enhance each other. Vitamin E regenerates oxidized astaxanthin. Vitamin C regenerates vitamin E. Resveratrol and curcuminoids act on complementary inflammatory pathways. This network is why a well-designed formula—like LEVIAL's triaxial architecture—surpasses the efficacy of any of its components taken in isolation.
