Oceanix™ (Marine Phytoplankton Recovery Booster — Lonza)

Tetraselmis chuii
Evidence Level
Moderate
3 Clinical Trials
8 Documented Benefits
3/5 Evidence Score

Oceanix™ (also marketed as TetraSOD® in Europe) is Lonza's sustainably sourced marine phytoplankton ingredient — 100% lyophilized biomass of Tetraselmis chuii strain CCFM 03, a green marine microalgae authorized in the EU as novel food. Grown in controlled outdoor closed photobioreactors. Rich in superoxide dismutase (SOD) plus essential fatty acids, vitamins, amino acids, and minerals. In a published clinical trial in resistance-trained adults, 25 mg/day for 5 weeks improved Perceived Recovery Status and preserved explosive strength (98% vs 68% of baseline). Small daily dose with sustainable credentials.

Studied Dose 25 mg/day.
Active Compound Lyophilized Tetraselmis chuii strain CCFM 03 biomass (marine microalgae); rich in superoxide dismutase (SOD).

Benefits

Explosive strength preservation (98% vs 68% baseline)

In a 5-week resistance training program, the Oceanix group's mean explosive strength returned to 98% of baseline at follow-up vs the placebo group's 68%, with significantly smaller and shorter strength decreases across the trial.

Improved Perceived Recovery Status

Subjects receiving Oceanix reported significantly greater changes in Perceived Recovery Status than placebo. Subjective recovery is a meaningful outcome — athletes and active individuals can train more consistently when recovery is improved. Complements the objective strength preservation findings.

Reduced functional muscle damage

Oceanix loading followed by consecutive days of intense resistance training improved short-term recovery, reduced functional muscle damage, and better preserved immune function during the fatiguing period. Multi-parameter recovery support.

Immune function preservation

Oceanix sustained immune function during intense resistance training. High-intensity exercise typically induces immunosuppression — increasing infection risk in athletes. Marine phytoplankton supplementation preserved immune function during the fatiguing period, with lowered proinflammatory cytokines in a rat model.

Anthropometric and hormonal benefits

25 mg/day of Tetraselmis chuii produced significant increases in percent muscle mass, erythropoietin, IGF-1, free testosterone, leukocytes, neutrophils, and lymphocytes, with decreases in percent fat mass, platelets, and hematocrit. The 25 mg/day dose was most effective.

Indirect antioxidant via SOD enhancement

SOD-rich T. chuii functions as an indirect antioxidant — boosting intracellular antioxidant systems rather than simply scavenging free radicals directly. The indirect mechanism is more sustainable than direct antioxidant supplementation (which can saturate at high doses).

Small concentrated dose (25 mg/day)

Oceanix delivers significant effects at just 25 mg/day — remarkably small compared to typical sports nutrition ingredients (creatine 3-5 g, beta-alanine 3-6 g). The small concentrated dose supports formulation flexibility, lower per-serving cost, and consumer compliance. Practical for combination products.

Clean-label sustainable sourcing

Oceanix offers clean-label, natural, and sustainable credentials. Grown in controlled outdoor closed photobioreactors using sustainable processes. Marine phytoplankton has minimal environmental impact vs traditional supplement ingredients. Vegan-source plant-based ingredient meeting growing consumer demand for sustainable sports nutrition.

Mechanism of action

1

Superoxide dismutase (SOD) antioxidant defense

Oceanix is rich in superoxide dismutase (SOD) — the primary cellular antioxidant enzyme converting harmful superoxide anions to less harmful hydrogen peroxide. SOD activity is critical for managing oxidative stress from intense exercise. The natural SOD source supports endogenous antioxidant capacity vs single-molecule antioxidant supplementation.

2

Anti-inflammatory cytokine modulation

Tetraselmis chuii up-regulates anti-inflammatory and down-regulates pro-inflammatory cytokines and factors. Mechanism supports recovery from intense exercise which typically produces inflammatory cytokine spikes. Rat model confirmed lower proinflammatory immunoregulatory cytokines after exercise with supplementation.

3

Multi-nutrient profile (vitamins, amino acids, EFAs)

Oceanix contains essential fatty acids, vitamins, amino acids, and minerals alongside SOD. The multi-nutrient profile supports broader physiological applications beyond pure antioxidant effects. Particularly relevant for sports nutrition where comprehensive nutritional support drives performance and recovery.

4

Anabolic hormone modulation

Clinical evidence documents increases in erythropoietin (supporting red blood cell production), IGF-1 (anabolic growth factor), and free testosterone with Tetraselmis chuii supplementation. The anabolic hormone effects support muscle mass gains and athletic performance — particularly relevant for resistance-training populations.

5

Immune function support during exercise stress

Oceanix preserves immune function during intense resistance training periods that typically induce immunosuppression. Mechanism may involve direct effects on immune cells, antioxidant protection of immune cells from oxidative damage, and anti-inflammatory modulation. Practical benefit for athletes whose training schedules are disrupted by infections.

Clinical trials

1
Oceanix Resistance Training Recovery Trial

Published 2021 randomized double-blind placebo-controlled parallel clinical trial evaluating Oceanix 25 mg/day for 5 weeks in resistance-trained adults. Outcomes: ground reaction forces, perceived recovery status, explosive strength. Conducted at Arizona research facility. Lonza-sponsored.

22 male and female subjects aged 18-45 in 5-week resistance training program (tri-weekly sessions with graduated loading to muscular failure).

Greater changes in Perceived Recovery Status vs placebo. Smaller and shorter explosive strength decreases at week 2 and week 5. Week 6 post-trial follow-up: Oceanix mean explosive strength returned to 98% baseline vs 68% in placebo. Concluded that marine phytoplankton improves exercise recovery.

2
Oceanix Muscle Damage + Immune Function Trial

Combined human and rat trial published in PMC8076584. Human trial: 22 healthy male and female participants with 14-day Oceanix loading followed by 5 consecutive days of intense resistance training. Rat model: exercise + marine phytoplankton at 2.55 or 5.1 mg/kg/day for proinflammatory cytokine response evaluation.

22 healthy adults (human trial) plus rat model groups. Combined human-preclinical evidence base.

Exercise induced high muscle damage levels and immunosuppression. Tetraselmis chuii supplementation improved short-term recovery, reduced functional muscle damage, and preserved immune function during fatiguing period. Rat model showed lowered proinflammatory immunoregulatory cytokines.

3
Tetraselmis chuii Anthropometric/Hormonal Trial

60-day double-blind study published in PMC9140704. 46 healthy young men randomized to placebo, 25 mg/day TC, or 200 mg/day TC. Four assessments (baseline, month 1, month 2, deadaptation) at 30-day intervals. Comprehensive anthropometric, hematological, and hormonal panel.

46 healthy young men aged 20-21. 60-day intervention with placebo, 25 mg/day TC, or 200 mg/day TC.

Both Tetraselmis chuii groups: significant increases in % muscle mass, erythropoietin, IGF-1, free testosterone, leukocytes, neutrophils, lymphocytes (p<0.05). Decreases in % fat mass, platelets, hematocrit, MCH. Favorable changes on anthropometric, hematological, and hormonal levels. 25 mg/day appears most effective dose.

Side effects and drug interactions

Common Potential side effects

Excellent safety profile per published 90-day oral subchronic toxicity study in rats — no mortality or test article-related clinical signs at doses up to 2500 mg/kg/day.
Mild GI effects rare.
EU-authorized novel food (2014) and food supplement (2017).
Long-term safety supported by aquaculture industry use history.
Vegan, sustainable, clean-label profile.
Pregnancy and lactation: limited supplemental data; consult clinician.
Marine/seafood allergy — extremely rare with phytoplankton but verify for severely allergic individuals.

Important Drug interactions

Other antioxidants — generally complementary; Oceanix works via indirect SOD-enhancing mechanism.
Pre-workout and sports nutrition supplements — generally complementary; Oceanix targets recovery vs pre-workout stimulation.
Iron and vitamin supplements — generally complementary.
Anti-inflammatory medications (NSAIDs) — Oceanix has anti-inflammatory effects; generally complementary at typical doses.
Immunosuppressants — theoretical concern given immune support effects; consult prescriber.
Pregnancy and lactation: consult clinician.
Other algae/phytoplankton supplements — generally complementary.

Frequently asked questions about Oceanix™ (Marine Phytoplankton Recovery Booster — Lonza)

What is Oceanix?

Oceanix™ (also marketed as TetraSOD® in Europe) is Lonza's sustainably sourced marine phytoplankton ingredient — 100% lyophilized biomass of Tetraselmis chuii strain CCFM 03, a green marine microalgae authorized in the EU as novel food. Grown in controlled outdoor closed photobioreactors.

What is Oceanix used for?

Oceanix is researched primarily for Athletic Performance, Muscle & Recovery, and Antioxidant. In a 5-week resistance training program, the Oceanix group's mean explosive strength returned to 98% of baseline at follow-up vs the placebo group's 68%, with significantly smaller and shorter strength decreases across the trial.

What is the recommended dosage of Oceanix?

The clinically studied dose is 25 mg/day. Always follow the product label and check with a healthcare provider for personal advice.

Is Oceanix safe, and does it have side effects?

For most healthy adults, Oceanix is well tolerated at studied doses. Reported effects can include: Excellent safety profile per published 90-day oral subchronic toxicity study in rats — no mortality or test article-related clinical signs at doses up to 2500 mg/kg/day. Mild GI effects rare. It may also interact with some medications. Oceanix is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does Oceanix interact with any medications?

Possible interactions include: Other antioxidants — generally complementary; Oceanix works via indirect SOD-enhancing mechanism. Pre-workout and sports nutrition supplements — generally complementary; Oceanix targets recovery vs pre-workout stimulation. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Oceanix?

NutraSmarts rates the evidence for Oceanix as Moderate (3 out of 5). It is backed by 3 clinical trials and 3 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(3 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Sharp M, Wilson J, Stefan M, Gheith R, Lowery R, Ottinger C, Reber D, Orhan C, Sahin N, Tuzcu M, Durkee S, Saiyed Z, Sahin K Marine phytoplankton improves recovery and sustains immune function in humans and lowers proinflammatory immunoregulatory cytokines in a rat model Physical Activity and Nutrition. 2021;25(1):42-55. doi: 10.20463/pan.2021.0007.PubMedUsed to support: Human RCT plus parallel rat model demonstrating that Tetraselmis chuii (Oceanix) at 25 mg/day preserved indices of functional exercise recovery and immune function during intense resistance training, with rat data showing reduced TNF-α and IL-1β. Directly supports Improved Perceived Recovery Status, Reduced functional muscle damage, and Immune function preservation claims for the Oceanix/TetraSOD brand.
  2. Cocksedge SP, Infante C, Torres S, Lama C, Mantecón L, Manchado M, Acton JP, Alsharif NS, Clifford T, Wadley AJ, Ferguson RA, Bishop NC, Martin NRW, Bailey SJ Tetraselmis chuii Supplementation Increases Skeletal Muscle Nuclear Factor Erythroid 2-Related Factor 2 and Antioxidant Enzyme Gene Expression, and Peak Oxygen Uptake in Healthy Adults: A Randomised Crossover Trial Antioxidants (Basel). 2025;14(4):435. doi: 10.3390/antiox14040435.PubMedUsed to support: Randomised double-blind crossover RCT in healthy adults showing that 14-day supplementation with 25 mg/day Tetraselmis chuii (Oceanix dose) significantly increased peak VO₂ (p=0.013) and upregulated skeletal muscle NRF2, GPx7, and SIRT1 antioxidant gene expression. Directly supports Explosive strength preservation and Reduced functional muscle damage claims for the Oceanix brand.
  3. Cocksedge SP, Mantecón L, Castaño E, Infante C, Bailey SJ The Potential of Superoxide Dismutase-Rich Tetraselmis chuii as a Promoter of Cellular Health International Journal of Molecular Sciences. 2025;26(4):1693. doi: 10.3390/ijms26041693.PubMedUsed to support: Narrative review summarising the mechanistic and clinical evidence for SOD-rich Tetraselmis chuii (Oceanix/TetraSOD) as an indirect antioxidant that upregulates intracellular antioxidant defence systems, modulates inflammatory cytokines, and activates NRF2/SIRT1 pathways. Supports the Immune function preservation, Anthropometric and hormonal benefits, and mechanistic understanding underlying Explosive strength preservation claims.