Dayliflora™Daylily Extract: Gut-Derived Dopamine for Natural Mood Balance

In his sixteenth-century pharmacopoeia Compendium of Materia Medica (Bencao Gangmu), Li Shizhen wrote of daylily that it "calms the five zang organs, benefits the heart and mind, and renders one joyful and free from worry." These few words captured the essence of how traditional Chinese medicine understood this plant for centuries — as a botanical remedy for emotional equilibrium and spiritual tranquility. Known across East Asia as "worry-forgetting grass" (忘忧草), "spirit-calming vegetable" (安神菜), and "brain-nourishing flower" (健脑菜), daylily (Hemerocallis citrina Baroni) has been woven into both culinary and medicinal traditions for over a thousand years.

But when we re-examine this ancient plant through the lens of modern metabolomics and mass spectrometry, a molecular story far more intricate than "worry-forgetting" begins to emerge. After a decade of dedicated research, the R&D team at World-Way Biotech screened and characterized 28 cultivars of H. citrina from diverse growing regions, identified and isolated its core antidepressant active compounds — 3-O-p-coumaroylquinic acid and 4-O-p-coumaroylquinic acid — and developed Dayliflora™Daylily Extract, a patented branded ingredient that represents a genuine bridge from empirical tradition to evidence-based science.

Part 1: Mechanism of Action — Decoding the Gut-Brain "Forget-Worry" Pathway

Conventional wisdom once located mood regulation exclusively within the brain. But the past decade of neuroscience has revealed something far more distributed: a complex, bidirectional communication network between the gut microbiome and the central nervous system — the microbiota-gut-brain axis (MGBA). And the core mechanism of Dayliflora™Daylily Extract sits precisely at this frontier.

When the phenolic acids in Dayliflora™Daylily Extract — led by coumaroylquinic acid at ≥0.1% — enter the gastrointestinal tract, they encounter the gut microbiota. Specific bacterial strains metabolize these phenolic compounds into Dopa, the direct biosynthetic precursor in the dopamine pathway. Dopa crosses the blood-brain barrier and, within the central nervous system, is converted by tyrosine hydroxylase and DOPA decarboxylase into dopamine and norepinephrine — the two monoamine neurotransmitters that govern mood, motivation, and the experience of pleasure [1] [2].

But this is only the first layer of Dayliflora™Daylily Extract's multi-target mechanism. Research demonstrates that H. citrina total phenol extract significantly upregulates brain-derived neurotrophic factor (BDNF) levels in the cerebral cortex and hippocampus. BDNF is a master regulator of neuronal survival, synaptic plasticity, and adult neurogenesis, and its downregulation is widely recognized as a core pathophysiological marker of depression [3]. Simultaneously, Dayliflora™ reduces malondialdehyde (MDA), a biomarker of oxidative stress, and suppresses the pro-inflammatory cytokine interleukin-6 (IL-6), providing additional neuroprotection through antioxidant and anti-inflammatory pathways [3] [4].

In essence, Dayliflora™Daylily Extract's mechanism can be summarized as a four-pronged synergistic cascade: "gut biotransformation → neurotransmitter biosynthesis → neurotrophic support → anti-inflammatory/antioxidant defense." It does not simply deliver exogenous neurotransmitters; instead, it leverages the body's own microbial metabolic machinery and endogenous enzyme systems to produce the right signaling molecules, at the right location, at the right rate. This is precision regulation — teaching the body to fish rather than handing it a fish.

Part 2: Evidence-Based Validation — From Drosophila to Rodents, From Behavior to Multi-Omics

Scientific claims require rigorous evidence. The neuropsychopharmacology of H. citrina has accumulated a compelling body of research over the past decade, spanning multiple model systems and experimental paradigms.

At the behavioral pharmacology level, multiple independent studies have validated the antidepressant-like effects of H. citrina extracts. Du et al. (2014), publishing in BMC Complementary and Alternative Medicine, reported that hydroalcoholic extracts of H. citrina exhibited significant antidepressant-like activity in both the Tail Suspension Test (TST) and Forced Swimming Test (FST) in mice, with efficacy comparable to the positive control [5]. Xu et al. (2016), in a study published in the Journal of Ethnopharmacology, further demonstrated that the total phenols extract of H. citrina (HCPE) not only ameliorated depressive-like behaviors in a chronic unpredictable mild stress (CUMS) rat model but also produced significant improvements in the cognitive deficits that accompany chronic stress — a dual benefit rarely addressed by conventional pharmacotherapy [4].

In the domain of sleep regulation, Liang et al. (2021, 2023) employed a powerful multi-omics approach — integrating Drosophila activity monitoring, metabolomics, targeted compound screening, and transcriptomics — to systematically elucidate the material basis and molecular mechanism of H. citrina's sleep-improving effects. Published in Foods and Food Research International, these studies confirmed that both aqueous and ethanol extracts of H. citrina significantly prolonged total sleep duration in insomnia-model fruit flies, with specific phenolic fractions driving the observed effects [6] [7].

Of particular note is the latest evidence on the gut-brain axis mechanism. Wang et al. (2025), publishing in Frontiers in Pharmacology, demonstrated that total phenols from H. citrina exert antidepressant effects through the microbiota-gut-brain axis, constructing a complete causal chain across three levels: gut microbiota compositional shifts, metabolite profiling, and central neurotransmitter quantification [8]. Jiang et al. (2024) in Life Sciences in Space Research focused on a model of chronic sleep deprivation — a highly translationally relevant paradigm for modern high-stress lifestyles — and found that H. citrina extract (2 g/kg/day) significantly ameliorated sleep deprivation-induced cognitive deficits and depressive-like behaviors, with efficacy comparable to the positive control vortioxetine [3].

At the compound level, the evidence is equally robust. Liu et al. (2022) in Frontiers in Pharmacology systematically characterized the antidepressant-active constituents of H. citrina, confirming that phenylpropanoids (including coumaroylquinic acid derivatives) and flavonoids constitute the primary pharmacodynamic material basis [1]. Ma et al. (2022) in Molecules further focused on phenylpropanoids and flavonoids, mapping their antidepressant target profiles through molecular docking and network pharmacology approaches [2]. Zhao et al. (2024) in Food Science & Nutrition employed computational biology methods to elucidate the multi-target antidepressant molecular mechanisms of H. citrina phytochemicals [9]. Gao et al. (2024) in Pharmaceuticals revealed the neuroprotective mechanisms of H. citrina at the signaling pathway level [10].

Taken together, the scientific investigation of H. citrina has progressed through a clearly delineated evidence chain from 2014 to 2025: behavioral validation → active compound identification → multi-target mechanism elucidation → gut-brain axis pathway mapping. The 3-O- and 4-O-p-coumaroylquinic acids discovered by World-Way represent the critical chemical anchors within this evidence framework.

Part 3: Application & The World-Way Solution — Translating Science into Reproducible Quality

For formulation R&D managers, scientific data translates into commercial value only when it is backed by stable, quantifiable raw material parameters. This is precisely where Dayliflora™ differentiates itself.

At the cultivar selection stage, World-Way conducted fingerprint chromatographic clustering analysis and foundational research on 28 H. citrina cultivars from diverse growing regions, ultimately selecting and domesticating the variety with the highest active compound content and greatest batch-to-batch stability for scaled cultivation. This ensures that every batch of Dayliflora™ consistently delivers coumaroylquinic acid at ≥0.1% (by HPLC), guaranteeing reproducible efficacy from the source.

In extraction technology, World-Way employs ultrasound-assisted medium-temperature extraction (40-50°C) combined with vacuum concentration and spray drying. Compared to traditional high-temperature decoction, medium-temperature processing maximizes the retention of thermolabile quinic acid derivatives, preventing activity loss during manufacturing. The entire process is conducted within a GMP Class 100,000 cleanroom, with UHT sterilization preceding spray drying, yielding a fine brownish-yellow powder with excellent water solubility — a form factor that adapts flexibly to diverse delivery systems.

From an application perspective, Dayliflora™Daylily Extract is recommended at a daily dose of 1-2 grams and can be formulated into solid beverages (e.g., pre-sleep calming powders), ready-to-drink functional beverages, pressed candies, and functional snacks. For synergistic formulations, Dayliflora™ paired with GABA and L-theanine shows combinatorial potential for stress-induced insomnia; combinations with ashwagandha (Withania somnifera) or passionflower extract can further broaden the target coverage for mood regulation.

On the quality assurance front, World-Way's manufacturing infrastructure is certified to FSSC 22000, ISO 9001, HALAL, and KOSHER standards, ensuring regulatory readiness for major international markets. Dayliflora™Daylily Extract is protected by a Chinese invention patent (Patent No. ZL 202610106975.5) and represents the culmination of a decade of World-Way R&D investment.

For thousands of years, daylilies have embodied people's simple yearning for "carefree" life; today, Dayliflora™ Lemon Daylily Powder gives this yearning a scientific basis. From gut microbiota to central neurotransmitters, from sleep repair to cognitive protection, we have not only revealed the molecular code behind "forgetting worries," but also encapsulated it into a patented raw material with clearly defined standards, controllable processes, and flexible applications. For every formula developer, Dayliflora™ Daylily Powder offers more than just a plant extract; it provides a definite guarantee of efficacy that truly addresses consumers' core pain points of "emotional stress," "sleep disturbances," and "physical and mental fatigue."World-Way: Making natural happiness traceable.

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