Home Ingredients Serenzo® (Sweet Orange Extract for Stress — Nexira)
Stress & AnxietyMood & Mental Health

Serenzo® (Sweet Orange Extract for Stress — Nexira)

Citrus sinensis
Evidence Level
Limited
0 Clinical Trials
3 Documented Benefits
2/5 Evidence Score

Serenzo® is a microencapsulated sweet orange (Citrus sinensis) extract from Nexira, developed as a botanical stress-relief ingredient. It is positioned to ease everyday stress and support a calm, balanced mood. A company clinical study reported reduced anxiety and stress markers, though independent evidence is still limited.

Studied Dose Around 500 mg per day.
Active Compound Microencapsulated sweet orange (Citrus sinensis) extract / essential oil with acacia gum.

Benefits

Stress relief

In an unpublished manufacturer-sponsored study, Serenzo was reported to reduce anxiety-scale scores and lower stress markers such as salivary cortisol. This finding has not been published or independently confirmed, and the two references cited on this page are orange-juice cognition studies that do not measure stress or cortisol.

Calm mood

The extract is positioned to support a calm, balanced mood during everyday stress.

Well-being support

Serenzo is used as a natural option for supporting day-to-day emotional well-being.

Mechanism of action

1

Adenosine-receptor interaction

Sweet orange compounds are thought to interact with adenosine A2a receptors involved in stress regulation, a proposed basis for the calming effect.

2

Stress-axis modulation

A manufacturer study reported changes in salivary cortisol; this has not been independently published or confirmed.

Clinical trials

Side effects and drug interactions

Common Potential side effects

Generally well-tolerated — adverse effects are uncommon at normal doses.
Mild digestive upset is occasionally reported.
Discontinue if any unusual reaction occurs.

Important Drug interactions

Sedatives — possible additive calming effect; use caution.
Tell your doctor if pregnant or breastfeeding.
Use caution if combining with other stress or sleep aids.

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Frequently asked questions about Serenzo® (Sweet Orange Extract for Stress — Nexira)

What is Serenzo?

Serenzo® is a microencapsulated sweet orange (Citrus sinensis) extract from Nexira, developed as a botanical stress-relief ingredient. It is positioned to ease everyday stress and support a calm, balanced mood.

What is Serenzo used for?

Serenzo is researched primarily for Stress & Anxiety and Mood & Mental Health. In an unpublished manufacturer-sponsored study, Serenzo was reported to reduce anxiety-scale scores and lower stress markers such as salivary cortisol.

What is the recommended dosage of Serenzo?

The clinically studied dose is Around 500 mg per day. Always follow the product label and check with a healthcare provider for personal advice.

Is Serenzo safe, and does it have side effects?

For most healthy adults, Serenzo is well tolerated at studied doses. Reported effects can include: Generally well-tolerated — adverse effects are uncommon at normal doses. Mild digestive upset is occasionally reported. It may also interact with some medications. Serenzo 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 Serenzo interact with any medications?

Possible interactions include: Sedatives — possible additive calming effect; use caution. Tell your doctor if pregnant or breastfeeding. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Serenzo?

NutraSmarts rates the evidence for Serenzo as Limited (2 out of 5). It is backed by 2 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(2 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. Kean RJ, Lamport DJ, Dodd GF, Freeman JE, Williams CM, Ellis JA, Butler LT, Spencer JP Chronic consumption of flavanone-rich orange juice is associated with cognitive benefits: an 8-wk, randomized, double-blind, placebo-controlled trial in healthy older adults The American Journal of Clinical Nutrition. 2015;101(3):506-14. doi:10.3945/ajcn.114.088518.PubMedUsed to support: 8-week RCT in which flavanone-rich orange JUICE improved cognition and episodic memory in older adults. It measured cognition, not stress, anxiety, or cortisol, and used orange juice rather than the Serenzo extract, so it is a different product tested for a different outcome. It provides only weak, indirect component-level context (shared Citrus sinensis flavanones) and does NOT support Serenzo's stress, calm-mood, or well-being claims.
  2. Alharbi MH, Lamport DJ, Dodd GF, Saunders C, Harkness L, Butler LT, Spencer JP Flavonoid-rich orange juice is associated with acute improvements in cognitive function in healthy middle-aged males European Journal of Nutrition. 2016;55(6):2021-2029. doi:10.1007/s00394-015-1013-x.PubMedUsed to support: Acute crossover trial in which flavonoid-rich orange JUICE improved COGNITIVE performance in healthy middle-aged males. It did not measure stress, anxiety, or cortisol, and used orange juice rather than the Serenzo extract. It offers only weak, indirect component-level context (shared Citrus sinensis flavanones) and does NOT support Serenzo's stress, calm-mood, or well-being claims.