google-site-verification: google3d9aaac5c109b05a.html
top of page

Last reviewed:

6/29/26

Last updated:

10/3/26

Guang Ci Tang

Sleepeace

Te Xiao Zao Ren An Mian Pian

A nine-herb classical Chinese formula designed to support restful sleep through botanically derived calming and blood-nourishing ingredients.

Sleep & Restoration

200 Tablets

5 tablets, 2–3 times daily

CURATEDFIT SUMMARY

Passes because this is a traditional Chinese herbal formula, Te Xiao Zao Ren An Mian Pian, combining nine herbs at a genuine 5:1 concentration with minimal fillers. The proprietary blend is flagged rather than failed, consistent with how the CuratedFit Standard treats traditional herbal formulas where undisclosed individual ratios may reflect historical formulation practice rather than a modern transparency gap. No sugars, dyes, or synthetic sweeteners are present.

WHAT IT IS

Sleepeace is a concentrated extract tablet based on Te Xiao Zao Ren An Mian Pian, a classical formula from Traditional Chinese Medicine used specifically to support restful sleep. The formula contains nine botanically derived ingredients at a 5:1 concentration, meaning each 200mg tablet represents 1g of raw herb. The full bottle of 200 tablets represents 40g of concentrated herbal extract.

The formula works from a TCM perspective by nourishing blood and calming the Shen, the concept of spirit or mental clarity that, when unsettled due to blood or Yin deficiency, manifests as difficulty sleeping, dream-disturbed sleep, or restlessness. From a modern perspective, several of the primary herbs have identified active compounds that interact with serotonin and GABA pathways in preclinical studies.

This is not a fast-acting supplement. It is a tonic formula designed to address an underlying pattern over time rather than induce sleep acutely. Effects typically become apparent after consistent use over several weeks.

WHO IT IS FOR

Someone who sleeps poorly due to stress, overthinking, or a generally unsettled mental state rather than an acute or clinical sleep disorder. If the pattern is lying awake with a busy mind, waking during the night, or feeling unrestored after sleep, this formula is designed for that presentation. It is not a sedative and does not function like melatonin or pharmaceutical sleep aids. It suits someone willing to take a longer-term approach to sleep quality rather than looking for an immediate effect.

INGREDIENT BREAKDOWN

​

​

The formula is declared as a proprietary blend. Individual herb doses are not disclosed. All active ingredients are botanically or naturally derived. See the transparency note for a full explanation of why the blend is structured this way.

Sour Jujube Seed

Suan Zao Ren

The anchor ingredient and the most researched herb in this formula. Used specifically for sleep support in TCM for over a thousand years. Active compounds including spinosin and jujubosides have been identified in preclinical studies as interacting with serotonin and GABA pathways. Naturally derived from the seed of Ziziphus jujuba. Strong traditional use history with emerging supporting research.

Uncaria Vine with Hooks

Gou Teng

Used in TCM to calm the liver and settle the nervous system. Active alkaloids including rhynchophylline have shown calming properties in preclinical studies. Naturally derived from plant material.

Polygala Root

Yuan Zhi

Used to calm the heart and clear the mind. Research has suggested effects on neurotransmitter systems relevant to anxiety and sleep, primarily in preclinical models. Naturally derived from Polygala tenuifolia root.

Fo-Ti Vine

Shou Wu Teng

The vine of the Polygonum multiflorum plant, used to nourish blood and calm the spirit. This review refers specifically to the vine (Shou Wu Teng), not the root (He Shou Wu), which has a different safety profile and carries liver safety concerns at high doses. Naturally derived from plant material.

Chinese Salvia Root

Dan Shen

Used to regulate blood circulation and clear heat from the heart. Widely researched herb, primarily in cardiovascular contexts. In this formula it contributes to the calming and blood-moving aspects of the blend. Naturally derived from Salvia miltiorrhiza root. Note: Dan Shen has known interactions with blood-thinning medications and is generally recommended to be discontinued before planned surgery due to potential anticoagulant effects. Consult a healthcare professional if relevant.

Schisandra Fruit

Wu Wei Zi

An adaptogenic berry used to calm the heart and address stress-related sleep disturbance. Reasonable research base for stress reduction and nervous system support, primarily from preclinical and early human studies. Naturally derived from Schisandra chinensis fruit.

Anemarrhena Rhizome

Zhi Mu

sed to clear heat and nourish Yin, addressing the internal heat pattern associated in TCM with restless, disturbed sleep. Naturally derived from Anemarrhena asphodeloides rhizome.

Oriental Arborvitae Seed

Bai Zi Ren

Used to nourish the heart and calm the spirit, particularly in presentations of heart blood deficiency with insomnia. Naturally derived from Platycladus orientalis seed.

Amber

Hu Po

Fossilised tree resin used in TCM to calm the spirit and settle the mind. Not a living plant source, it is a fossilised material. Natural in origin but biologically distinct from the herbal ingredients in the formula. Noted here for transparency.

​

​

Corn starch, dextrin, magnesium stearate. Standard tablet binders and flow agents. Minimal excipients by design — tablets are uncoated as part of Guang Ci Tang's stated policy to keep secondary ingredients to a minimum.

CERTIFICATIONS

Informed Sport
Not Confirmed
Banned substance tested
Not Confirmed
GMP Certified
Certified
Heavy metals tested
Certified
BRCGS
Not Applicable
FSSC 22000
Not Applicable

CURATEDFIT STANDARD CHECK

Pass

As Natural As Possible

All nine active ingredients are botanically or naturally derived. No synthetic active compounds present. Amber (Hu Po) is fossilised resin, natural in origin, noted for transparency. Excipients are standard binders present in minimal quantities by design.

Pass

Contains What It Claims

The manufacturer states that herbs undergo identity and quality testing, with independent heavy metal testing also reported. No evidence of adulteration or label inaccuracy from available sources.

Pass

Every Ingredient Earns Its Place

Every herb in the formula has a declared traditional function within the TCM framework. No filler herbs or undisclosed additives. Excipients are minimal and serve a clear formulation purpose.

Pass

No Insect-Derived Ingredients

All active ingredients are plant or mineral-derived. No insect proteins or insect-based additives present.

Warning

No Proprietary Blends

Individual herb doses are not disclosed. CuratedFit normally treats undisclosed ingredient quantities as a transparency concern. Traditional herbal formulas are evaluated differently because the historical ratios themselves may constitute part of the formulation's intellectual property. The blend remains flagged because individual quantities cannot be independently assessed.

Pass

Allergen Declaration

No major allergens declared in the active ingredients. Tablet format excipients include corn starch. Note: the teapill (Wan) variant uses gelatin derived from pork and is not suitable for vegetarians or those avoiding pork-derived ingredients. Individuals with corn sensitivity should note the tablet excipient.

Pass

Sugar Content Declared

No sugar added. Tablet format with negligible carbohydrate content from excipients only.

Pass

Artificial Sweeteners and Flavorings

No sweeteners, flavourings, or artificial additives present. Uncoated tablets by design.

Pass

Heavy Metals and Contaminants

Independent laboratory heavy metal testing reported by the manufacturer. This is a meaningful positive for a herbal product with ingredients sourced from China, where heavy metal contamination in botanical ingredients is a known industry concern. CuratedFit has not independently verified the test reports.

Warning

Banned Substance Risk Declared

No banned substance testing confirmed for this product. Competitive athletes subject to anti-doping regulations should seek guidance before use.

Warning

Country of Manufacture Noted

Manufactured in a cGMP-certified facility and marketed as a dietary supplement under US FDA dietary supplement regulations. EU regulatory framework does not apply to this product. European buyers should be aware that this product has not been assessed or approved under EU supplement regulations.

TRANSPARENCY NOTE

What CuratedFit is evaluating and why this product passes

CuratedFit evaluates active ingredients first, with the greatest weight placed on the origin and processing pathway of a product's active ingredients, while also evaluating transparency, ingredient disclosure, and manufacturing information where available.

A product can pass the CuratedFit Standard without strong clinical evidence for efficacy. The Standard evaluates ingredient origin, processing, manufacturing quality, contamination risk, and transparency. Clinical effectiveness is discussed separately so readers can distinguish product quality from the strength of the evidence supporting its intended use.

All nine active ingredients in Sleepeace are botanically or naturally derived. No synthetic active compounds are present. The formula meets the CuratedFit natural origin criterion.

On the proprietary blend

This product declares its ingredients as a proprietary blend, meaning individual herb doses are not disclosed. Under the CuratedFit Standard this is flagged for transparency.

Unlike many sports supplements where proprietary blends frequently obscure ingredient quantities, traditional Chinese formulas often preserve historical ratios as part of the formulation itself. CuratedFit therefore flags the lack of disclosure while recognising that the context differs from modern performance supplements. The blend remains flagged because individual quantities cannot be independently assessed regardless of the reason for non-disclosure.

On the evidence

Suan Zao Ren, the anchor herb, has the strongest evidence base of the nine ingredients. Active compounds have been identified in preclinical studies as interacting with serotonin and GABA pathways. The other herbs have varying degrees of emerging research, primarily from animal models and a smaller number of early human studies.

The honest position is this: the formula has a coherent biological rationale, a very long traditional use history specifically for sleep, and emerging modern research that is supportive but not conclusive by Western clinical trial standards. CuratedFit does not claim it works in the way a pharmaceutical sleep aid is clinically proven to work. What can be said is that the ingredients are real, botanically derived, and used for this purpose for centuries.

On EU regulatory status

This product is marketed as a dietary supplement under US FDA dietary supplement regulations. It has not been assessed or approved under EU supplement regulations. European buyers should be aware of this distinction. Availability of international shipping to Europe from Chinese Herbs Direct should be confirmed directly with the retailer before ordering.

FREQUENTLY ASKED QUESTIONS

How long does it take to work?

This is a tonic formula, not a sedative. Effects typically become apparent after consistent use over several weeks. An initial course of four to six bottles at the full dose is suggested before assessing results. This is not the right product if you need immediate sleep support.

How is this different from melatonin?

Melatonin acts directly on the sleep-wake cycle and works acutely — taken before bed it signals the body to prepare for sleep. Sleepeace works differently, addressing an underlying pattern over time in line with the TCM framework. They are serving different purposes and are not directly comparable.

What does proprietary blend mean and should I be concerned?

It means the individual dose of each herb is not disclosed, only the total blend weight. In this context one plausible explanation is that the formula ratio constitutes the intellectual property of the formulation rather than an attempt to conceal underdosing. All nine herbs are declared by name. The full transparency note above explains the distinction in detail.

Is it safe to take alongside other supplements or medications?

Not for use during pregnancy. Consult a healthcare professional before combining with medications, particularly sedatives, antidepressants, or blood-thinning medications. Dan Shen (Chinese Salvia root) has known interactions with anticoagulants and is generally recommended to be discontinued before planned surgery. Several other herbs in this formula have active pharmacological properties that may interact with certain medications.

Is it suitable for competitive athletes?

No banned substance testing has been confirmed for this product. Athletes subject to anti-doping regulations should seek guidance before use.

Is this product available in Europe?

The product is marketed under US FDA dietary supplement regulations and ships from the United States. International shipping availability to Europe from Chinese Herbs Direct has not been independently confirmed by CuratedFit at time of review. Confirm directly with the retailer before ordering.

Sources:

Guang Ci Tang manufacturer documentation

10/3/26

​

​

​

​

The Curated Edit - Monthly

Monthly picks, ingredient breakdowns, and honest reviews. Straight in your inbox. No hype, no filler.

No spam. Unsubscribe anytime.

bottom of page