Ingredient guide

Sweet Orange Extract (Serenzo): Stress Evidence

Serenzo is a branded sweet orange extract studied for stress and mood. Laboratory and animal evidence supports anxiolytic activity from citrus extracts. Direct human trial evidence for Serenzo specifically is limited.

Limited evidence

Written by Supplements Unpacked Editorial Team

Benefits

Animal work supports anti-anxiety and antidepressant-like effects of citrus extracts.
Acute inhalation of sweet orange oil reduces anxiety in human studies.
May influence HPA-axis activity and neurotransmitter systems.

Evidence summary

What sweet orange Serenzo is

Serenzo is a branded extract from sweet orange (Citrus sinensis), positioned as a mood and stress support ingredient. It contains natural citrus compounds that appear in several stress-related laboratory studies.

What the human research shows

Animal work and acute inhalation studies support anxiolytic effects of citrus extracts. Citrus may influence HPA-axis activity, monoaminergic systems, and neurogenesis. Direct published human trial evidence on the specific Serenzo branded extract is limited. We grade the evidence as limited.

Dosage & safety

Dosage

Manufacturer suggests 250 mg of Serenzo extract per day. There are no published direct human trials on Serenzo specifically. Ask your healthcare provider before regular use.

Side effects

Generally well tolerated.
Most common are mild stomach upset.
Citrus can affect light sensitivity in some people.

Interactions

Citrus extracts may interact with medicines processed by the liver, similar to grapefruit.

Warnings

Speak with a doctor before regular Serenzo use, since human trial data on the specific ingredient is limited.
Citrus may interact with some medicines processed by the liver.

Products with this ingredient

Restilen Restilen Restilen is positioned for helps maintain a positive mood, supports the maintenance of energy and vitality, supports blocking of the D2 receptor responsible for stress response. Use this as a product research starting point until the benefits, ingredients, and safety notes are reviewed. Read review

Related ingredient guides

Green tea extract (EGCG) Read guide Lemon balm (Melissa officinalis) Read guide Magnesium Read guide Melon SOD (Extramel) Read guide Passionflower Read guide

Citations

Citrus-based sensory ingredient on BOLD brain responses to stress in pig model ncbi.nlm.nih.gov

Frequently asked questions

Does Serenzo help with stress?

Animal evidence and acute inhalation studies support citrus extracts for stress. Direct human trial evidence on Serenzo specifically is limited.

Is it safe with medicines?

Citrus extracts can affect liver enzymes that process some medicines, similar to grapefruit. Check with a doctor or pharmacist.