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Circadian Sleep

Life Extension
4.5
(222 ratings)
Melatonin 1.5 mg
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Score90

A specialized time-release formula designed to help maintain a steady sleep-wake cycle throughout the night.

How scoring works
Quantity:30 Capsule(s)(30 servings)
Goals:
Sleep Support
General Health

Score 90

A specialized time-release formula designed to help maintain a steady sleep-wake cycle throughout the night.

How scoring works
$21.00($0.70 per serving)
Pure Formulas
$ 21.00
iHerb
$ 21.00
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Analysis

Circadian Sleep uses a unique form of melatonin that releases more slowly than standard tablets, helping to keep levels consistent for several hours. It also includes nobiletin, a citrus-derived compound that may help support the body's internal clock.

The 1.5mg dose is gentle and focuses on maintenance rather than just knocking you out. It’s a great choice for people whose sleep is disrupted by travel or work shifts and need help staying on a regular schedule.

Pros

  • Controlled release melatonin
  • Includes citrus nobiletin
  • Supports sleep maintenance
  • Gentle 1.5mg dose

Cons

  • Higher price for a low dose
  • Only 30 servings per bottle

Warnings

  • Best taken at a consistent time
  • Do not split the capsule

Nutrient quality

94 Highest impact

MicroActive Melatonin represents a highly bioavailable, sustained-release form that supports sleep maintenance more effectively than standard versions. Nobiletin is included in a meaningful dose to support the body's natural circadian signaling pathways.

Ingredient transparency

97 Highest impact

Clear disclosure of all active amounts and specific ingredient forms allows for a precise evaluation of efficacy. The label provides specific details regarding the MicroActive delivery system and source materials.

Customer satisfaction

87 Highest impact

Strong average ratings and a high volume of reviews indicate consistent performance for most users. Positive feedback frequently highlights the effectiveness of the sustained-release mechanism for staying asleep.

Value for money

78 High impact

Premium pricing is justified by the use of advanced delivery technology and specialized bioflavonoids. While higher than basic alternatives, the specialized nature provides distinct advantages for specific sleep goals.

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Goals

Impact
Highest effect
A+ Goal FitA+ Strength of SupportB CoverageA+ Formula Quality

Melatonin and Nobiletin are combined to provide targeted support for the body's internal clock and sleep maintenance. The use of MicroActive Melatonin ensures a more controlled and sustained release throughout the night.

This specialized approach addresses both sleep latency and the ability to stay asleep. The formula is well-designed for those whose primary concern is circadian rhythm disruption rather than physical restlessness.

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Impact
High effect
B- Goal FitA- Strength of SupportC- CoverageA- Formula Quality

Maintaining a healthy sleep-wake cycle is a vital component of long-term systemic resilience and physiological recovery. Circadian rhythm regulation supports immune readiness and metabolic function, which are central to wellness.

Nobiletin and melatonin are included to synchronize internal clocks and promote restorative sleep. This combination may contribute to daily vitality by ensuring the body undergoes necessary cellular repair during the night.

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Ingredients

IngredientAmount per serving
Nobiletin (Citrus fruit)
50 mg
MicroActive Melatonin
1.5 mg
Adults 18–50
Report overview
Melatonin · 1.5 mg OverallScore76
B- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value
This advanced formula utilizes MicroActive Melatonin to provide a controlled release throughout the night. It is a premium choice specifically designed for individuals who struggle with staying asleep.
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