Source Naturals

Serene Science® Theanine Serene® with Relora®, 120 Tablets

Theanine Serene® with Relora® from Source Naturals combines L-theanine, an amino acid found in green tea, with Relora® (a proprietary blend of Magnolia officinalis and Phellodendron amurense bark extracts), along with magnesium and holy basil.

4.7 across 9 sources

May be a fit for

  • Adults seeking L-theanine support for calm focus during stressful workdays
  • Individuals using Relora® to help maintain healthy cortisol balance
  • Those looking to support relaxed mental clarity without daytime drowsiness
$35.99

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TabletsFormat
120 TabletsPack size
The essentials

A closer look.

Theanine Serene® with Relora® from Source Naturals combines L-theanine, an amino acid found in green tea, with Relora® (a proprietary blend of Magnolia officinalis and Phellodendron amurense bark extracts), along with magnesium and holy basil. This formulation supports a calm, relaxed mental state and may help maintain healthy cortisol balance for adults navigating everyday stress.

Why It's Worth Considering: The combination of L-theanine with Relora® targets both neurological relaxation pathways and stress-hormone modulation in a single formula, offering a layered approach compared to single-ingredient options.

The Apotheca perspective

50+ signals. A clearer standard.

Our curation and trust scoring bring together manufacturing, testing, research, practitioner insight and reviews from across the web.

84OUT OF 100
Manufacturing4343
Lab verification6565
Transparency7070

Our score is an editorial assessment, not a product certification or a guarantee of results.

Inside the formula

Product details

Who it may suit

May be a fit for

  • Adults seeking L-theanine support for calm focus during stressful workdays
  • Individuals using Relora® to help maintain healthy cortisol balance
  • Those looking to support relaxed mental clarity without daytime drowsiness
  • People combining L-theanine and Relora® for evening wind-down routines

Considerations

  • Taking blood pressure medications (L-theanine may lower BP)
  • Very low blood pressure already
  • Generally very safe — one of the best-tolerated supplements
Explore complementary products
From across the web

Real reviews. A wider perspective.

Customer reviews, social conversations and expert insights, with every source in view.

4.7/5Aggregate source rating
Marketplaces & brand websites
Amazon, iHerb and direct brand reviews
Social & community
Reddit, X, Instagram and TikTok
Video & creators
YouTube and creator perspectives

Coverage varies by product and brand.

4872 product and brand ratings and mentions across 9 sources.

Explore the source sentiment summary

L-theanine widely praised for reducing anxiety and mental chatter while improving focus without sedation or drowsiness.

This summary includes broader brand discussion. Individual experiences are not evidence of product effectiveness.

Good to know

A few useful answers.

Research & further reading

More category questions

How fast does L-theanine work?

L-theanine produces measurable alpha brain wave increases within 30-40 minutes of ingestion. Most people notice a sense of calm focus within 30-60 minutes. Unlike prescription anti-anxiety medications, it works quickly without sedation, cognitive impairment, or dependence.

Can I take L-theanine with coffee?

Yes — this is the most well-studied nootropic combination. L-theanine (200mg) smooths caffeine's stimulatory effects, reducing jitteriness and anxiety while preserving alertness and focus. Studies show the combination improves attention and task-switching better than either alone. The ideal ratio is 2:1 theanine to caffeine.

Is L-theanine safe to take every day?

Yes. L-theanine is one of the safest supplements available — it's the primary amino acid in green tea. Doses up to 400mg/day have shown no adverse effects in clinical studies. No tolerance builds up, no withdrawal, and no dependence. It can be taken daily for years without concern.

Does L-theanine help with sleep?

L-theanine improves sleep QUALITY without causing drowsiness — it promotes relaxation and reduces racing thoughts, making it easier to fall asleep. It's particularly effective for people whose insomnia is driven by anxiety or an overactive mind. Take 200-400mg about 1 hour before bed. Unlike melatonin, it won't make you groggy if you need to wake up.

Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.

Source Naturals - Serene Science® Theanine Serene® with Relora®, 120 Tablets Source Naturals

Apotheca quality score

84/100

The overall score combines several sources of information. The individual dimensions below show where those signals are stronger or more limited; they are not a simple average of the overall score.

Manufacturing4343
Lab verification6565
Review consensus100100
Practitioner signals64.064.0
Community signals6363
Transparency7070
See available brand signals
✓
Quality ingredients with verified sourcingGood
✓
Clean FDA regulatory recordNo issues
✓
Positive consumer reviews and community feedbackGood
✓
Authorized distribution channel verifiedDirect

Our score is an editorial assessment, not a product certification or a guarantee of results.

How our scoring works ↗