Natural Factors Suntheanine L-Theanine 100 mg
Health Supplement for Calm Outlook - L-Theanine Supplement Supports Relaxing Sleep & Aids Against Drowsiness…
Price as of 2026-06-19. Check Amazon for the current price.
Quick Decision
Is This Right For You?
- •Buyers who prioritize quality over price in sleep supplements
- •You're on a tight budget — $11 above the category average of $25
- •ZzzQuil Pure Zzzs offers a better rating (4.8/5) at a similar or lower price ($18)
- •Goli Dreamy Sleep Gummy — 58% cheaper at $15 (Score A-)
- •ZzzQuil Pure Zzzs — higher rated at 4.8/5 ($18)
📊 Based on data analysis of 117 products in this category.
Mubboo Score: B
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other sleep supplements
Computed from live Amazon rating, review count, and price across 117 sleep supplements · last refreshed 2026-06-19.
How It Compares
This Product Natural Factors Suntheanine L-Theanine 100 mg | Most Popular thisworks Deep Sleep Pillow Spray | Best Rated ZzzQuil Pure Zzzs | Best Value Goli Dreamy Sleep Gummy | |
|---|---|---|---|---|
| Price | $35.67 | $60 | $17.99 | $14.98 |
| Rating | 4.5/5 | 4.3/5 | 4.8/5 | 4.4/5 |
| Reviews | 1,779 | 24,721 | 10,787 | 4,783 |
| Mubboo Score | B | B | A | A- |
What People Say
Synthesized from 32 reviews · 100% verified purchases.
For melatonin, start with a low 1mg dose to avoid grogginess; with pillow sprays, try a smaller size first to test scent strength and personal effectiveness.
- Quick sleep onset
- Restful sleep through the night
- No morning grogginess
- Pleasant taste and easy to take
- Inconsistent staying asleep
- Scent variability or weak aroma
- Higher price
Related Video Reviews
- 📹 Top 5 Best Sleep Supplements 2026 (Sleep Aids That Actually Work) — Garage Gym Homie
About Natural Factors
- 7 products in our database
- Average rating: 4.5/5 across all products
- Price range: $11.87 – $41.97
- Categories: herbal-supplements, lipid, Sleep Aids, sleep-supplements, Vitamin D Supplements
Other sleep supplements
Bottom Line
Natural Factors Suntheanine L-Theanine 100 mg earns Mubboo Score B. Priced at $36 — a premium option, above the category average of $25. Rated 4.5/5 from 1,779+ reviews. Strong buy if: buyers who prioritize quality over price in sleep supplements. Skip if: you're on a tight budget — thisworks Deep Sleep Pillow Spray (Score B, $60) may fit better.
Frequently Asked Questions
Is the Natural Factors Suntheanine L-Theanine 100 mg worth buying in 2026?
It earns a Mubboo Score of B, with a 4.5/5 rating from 1,779 reviews — better than 59% of sleep supplements we track.
How much does the Natural Factors Suntheanine L-Theanine 100 mg cost?
It is currently $35.67 — premium-tier pricing for sleep supplements.
How does the Suntheanine L-Theanine 100 mg compare to other sleep supplements?
The category's most-reviewed alternative is the thisworks Deep Sleep Pillow Spray (4.3/5, 24,721 reviews, $60). The Suntheanine L-Theanine 100 mg carries a Mubboo Score of B vs B.
Sources & References
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-19) and may change.