Why Facial Acupuncture Works for Sagging Skin – Mechanisms and Evidence from Comparative Studies

Introduction

"Does facial acupuncture really work for sagging skin?"

To answer this question with clear evidence, this article focuses on the following two points:

1. The mechanism of how facial acupuncture works on sagging skin

2. Whether comparative studies (randomized controlled trials, controlled studies) actually exist and what they show

Note: Topics such as masseter muscle volume reduction and sleep quality improvement have been covered in previous articles, so they will only be briefly mentioned here.

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1. First, Understand This: Facial Sagging Is a Multi-Layered Phenomenon

Before understanding the mechanism of facial acupuncture, we need to clarify what sagging actually is.

Facial sagging is a phenomenon where multiple layers—from the skin surface down to the periosteum—progressively lose function due to aging.

Facial Structure (Surface → Deep)

Layer	Role	Changes with Aging
Epidermis	Barrier function	Slowed turnover
Dermis	Supports skin with collagen & elastin	Decreased fibroblasts → Reduced collagen & elastin production
SMAS fascia	Encases facial muscles, supports overall structure	Relaxation & elongation
Fat compartments	Maintains facial volume	Atrophy & descent
Periosteum & bone	Foundation	Decreased bone density & resorption

The essence of sagging is the loss of balance between "supporting forces" and "downward forces."

As collagen and elastin decrease with age, the SMAS fascia loosens, and fat descends, the skin can no longer be adequately supported—resulting in visible sagging.

So how does facial acupuncture affect these layers?

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2. Four Mechanisms by Which Facial Acupuncture Works on Sagging

Mechanism ①: Fibroblast Activation → Potential Promotion of Collagen Production [Dermal Level]

This is considered the most fundamental mechanism.

Fine needle insertion → Microtrauma → Wound healing response → Fibroblast activation → Promotion of collagen, elastin, and hyaluronic acid production (theorized)

• When the needle reaches the dermal layer, the body recognizes it as "micro-damage" and initiates repair processes

• During this process, fibroblasts are activated, and it is thought that new collagen and elastin may be generated

• Collagen acts as the skin's "framework," and elastin as its "spring," expected to restore firmness and elasticity

Reference: A 2025 review in Frontiers details the role of fibroblasts in acupuncture, stating that "fibroblasts are key cells bridging mechanical stimulation and biological response, offering a new perspective on the modern understanding of acupuncture mechanisms" (Frontiers in Bioengineering and Biotechnology, 2025).

This is essentially the same mechanism as microneedling used in aesthetic medicine. It is a highly rational approach in that it uses physical needle stimulation to draw out the skin's natural regenerative ability.

【Key Point】

Botox improves wrinkles by suppressing muscle activity—its mechanism differs from that of facial acupuncture.

Mechanism ②: Improved Blood Circulation & Lymphatic Drainage [Circulatory Level]

• Reports in the Journal of the Japan Society of Acupuncture and Moxibustion (JJSAM) and other publications indicate that needle stimulation locally increases facial blood flow (research group led by Prof. Yoshihisa Koga, Tokyo Ariake University of Medical and Health Sciences)

• Increased blood flow → Enhanced oxygen and nutrient supply → Activation of skin cell metabolism

• Improved lymphatic drainage → Enhanced waste elimination → Reduced puffiness

Improved blood flow helps normalize skin turnover, reducing dullness and increasing skin clarity, while also supporting sustained collagen production cycles through better metabolism.

What matters for sagging: Good blood flow supports fibroblast activity and contributes to collagen maintenance.

【Key Point】

HIFU and RF use thermal energy to contract tissues and promote collagen remodeling—they do not directly improve blood flow. Facial acupuncture is unique in that it enhances blood flow, a fundamental life process, thereby boosting the skin's own "self-maintenance capacity."

Mechanism ③: Relaxation of Facial Expression Muscles & Rebalancing Muscle Tone [Muscle Level]

This is a mechanism unique to facial acupuncture that sets it apart from mere "skin stimulation."

• With aging, some facial muscles become overly tense (overused) while others undergo disuse atrophy (underused), creating imbalance

• Overly tense muscles (masseter, temporalis, frontalis, etc.) become hard and shortened, generating a downward pulling force on tissues

• In particular, masseter hypertonicity pulls the cheek fat downward via the SMAS fascia, worsening nasolabial folds and jawline sagging

When a needle is inserted into an overtense muscle:

• A local muscle spindle reflex is triggered, reducing muscle tension

• Reduced tension → Decreased downward pulling force → Facial tissues tend to return to their original position

This is the mechanism believed to underlie the "7.37% reduction in masseter volume following acupuncture stimulation" reported in 2024 (Ogino et al., 2024). The fact that MRI showed a reduction in masseter size suggests that decreased muscle tension may be involved. It is also noteworthy that this change was observed with a realistic frequency of once weekly for 8 weeks.

【Key Point】

Botox blocks nerve transmission to suppress muscle activity, whereas facial acupuncture promotes natural muscle relaxation. While both aim at "reducing muscle tension," their methods differ.

Mechanism ④: Synergistic Effects of Simultaneous Multi-Layer Approach

The greatest strength of facial acupuncture is that a single treatment can simultaneously address the dermis, blood flow, muscles, and nerves.

Approach	Botox	HIFU	Facial Acupuncture
Collagen production involvement	❌	△ (indirect thermal effect)	✅ Direct stimulation (potential)
Blood flow improvement	❌	❌	✅
Muscle tension relief	✅ (nerve blockade)	❌	✅ Natural relaxation
Lymphatic drainage	❌	❌	✅
Nervous system effects	❌	❌	✅ Autonomic effects reported
Side effect risk	Facial stiffness	Burns, pain	Extremely low
Downtime	Yes	Yes	Almost none

In other words, facial acupuncture is not about pursuing a single effect—it is a treatment philosophy that supports skin condition through multiple pathways simultaneously.

3. Do Comparative Studies (Controlled Trials, RCTs) Actually Exist?

This is the core question. To what extent do scientific comparative studies support the claim that "facial acupuncture works for sagging"? We will organize the evidence by level of evidence.

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Study ①: Effect of Facial Acupuncture on Cheek Skin Lift – A Randomized Controlled Trial (RCT) [Most Important]

Misago M, Yamazaki T, Sato M, Ito K. (2025)

Journal of the Japan Society of Mibyo (Pre-symptomatic Medicine), Vol.31 No.1, pp.8-14

This is the most important comparative study to date.

Item	Details
Design	Randomized controlled trial (RCT) ← Highest level of evidence
Subjects	Randomized assignment to facial acupuncture group and control group
Intervention	Facial acupuncture (single session)
Outcome measure	Study-specific lift index (objective measurement)
Results	Median lift improvement of approximately 33% in the acupuncture group, statistically significant compared to the control group

Significance of this study:

• Employed an RCT, the highest level of evidence

• Demonstrated approximately 33% improvement in the study's specific metric after a single session

• Dr. Yamazaki himself described it as "the culmination of 10 years of research on facial acupuncture"

Limitations:

• Small sample size (12 in the acupuncture group)

• Evaluated after only a single session; long-term effect durability not yet tested

Study ②: MRI-Based Masseter Volume Analysis – Before-After Comparison Study

Ogino M, Iijima M, Okada Y, Okuda I. (2024)

Aesthetic Surgery Journal Open Forum, Volume 6, ojae109

Although this is a before-after comparison without a control group, it is highly significant for using MRI as an objective measurement.

Summary of results:

• Once-weekly facial acupuncture for 8 weeks reduced masseter volume by an average of 7.37% (p<0.05)

• Subjective improvement was particularly notable for sagging, contour, and asymmetry

The suggested chain of effects:

Acupuncture-induced muscle relaxation → Reduced masseter cross-sectional area → Sharper jawline contour → Reduced sagging

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Study ③: Acupuncture for Glabellar Frown Lines – A Randomized Controlled Trial (Reference Study)

Haghir H, et al. (2025)

Journal of Cosmetic Dermatology, 24(4), e70144

While this study targets frown lines, it is relevant because it shares a common mechanism with sagging in terms of "relaxing facial muscle tension."

Item	Details
Design	Randomized waitlist-controlled trial (RCT)
Subjects	72 women aged 30-59
Intervention	Facial + body acupuncture, twice weekly for 6 weeks
Results	At week 7, 63% of the intervention group showed improvement in frown lines (significant vs. control). Satisfaction and QOL (social function) also improved
Side effects	Bruising 0.69%, extremely low. No infections or allergies

Implications for sagging:

The study's discussion notes that acupuncture may reduce wrinkles by decreasing overuse of facial muscles. This aligns with the mechanism of relieving "downward pulling by overtense muscles" in sagging.

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Evidence Summary Table

Study	Year	Design	Subjects	Assessment Method	Sagging-Related Results
Misago & Yamazaki et al.	2025	RCT ✅	12 (acupuncture group)	Study-specific lift index (objective)	~33% improvement on the index
Ogino et al.	2024	Before-after	10 women, mean age 50.3	MRI + questionnaire	7.37% masseter reduction, sagging improved
Haghir et al.	2025	RCT ✅	72 women aged 30-59	GAIS, SSS, QOL	Frown line improvement (muscle relaxation)

4. Conclusion and Message

Evidence Summary

✅ Comparative studies supporting the efficacy of facial acupuncture for sagging do exist.

The Misago & Yamazaki RCT (2025) reported significant improvement on the study's specific index after a single facial acupuncture session. MRI studies have also suggested a link between masseter volume reduction and sagging improvement.

✅ The mechanism can be explained through four pathways.

Fibroblast activation (potential collagen production), blood flow improvement, muscle tension relief, and nervous system effects—these act on multiple layers to address sagging.

Research Limitations and Future Evidence Expected

To be honest, current research on facial acupuncture for sagging has the following limitations:

• Small sample sizes (even RCTs have 12–72 subjects); large-scale verification is still lacking

• Most studies focus on single interventions; long-term durability and optimal treatment frequency remain unclear

• Fibroblast activation is a strong hypothesis with supportive evidence from in vitro and animal studies, but direct confirmation of increased collagen in human facial skin has not yet been reached. This is an area where future research is anticipated.

However, despite these limitations, clinical experience shows that many patients do experience real improvement in sagging, and evidence supporting the potential efficacy of facial acupuncture has been steadily accumulating in recent years. We look forward to future large-scale trials and long-term follow-up studies.

Why Choose Facial Acupuncture?

This is the most important point.

Facial acupuncture is fundamentally different in its goals from Botox or HIFU.

	Botox/HIFU Approach	Facial Acupuncture Approach
Philosophy	"Correct" by applying external force	"Draw out" internal self-healing ability
Target	The symptom (wrinkles, sagging) itself	The "functional decline" producing the symptom
Nature of effect	Powerful but symptomatic & temporary	Gentle but sustained & cumulative
Skin condition	Dependent on external intervention	Able to maintain itself

An analogy:

• Botox is like "moving the hands of a broken clock by applying external force." The hands move, but the internal mechanism remains unchanged.

• Facial acupuncture is like "carefully repairing each gear of a broken clock so it can run on its own." It takes time, but once it starts moving, it keeps going under its own power.

In other words, the true value of facial acupuncture lies in the fact that "with each session, skin condition improves and effects build upon one another."

• Session 1 → Improved blood flow: "dullness is gone," "face feels lighter"

• Sessions 3–5 → Fibroblast activation: "I can feel firmness coming back"

• Session 8+ → Muscle tension release: "jawline is more defined," "sagging is less likely to return"

This "cumulative effect" is the greatest strength of facial acupuncture—a unique value that Botox and HIFU cannot offer.

In Closing

Facial acupuncture versus Botox/HIFU is not about "which is right" but "which to choose."

• "I want immediate results" / "I need guaranteed effects before a special event" → Botox / HIFU

• "I want to improve my skin condition gradually" / "I want natural change" / "I want overall skin health" → Facial acupuncture

• "I want the best of both" → Combination is possible

Above all, facial acupuncture offers virtually no downtime and extremely low side effect risk.

"Now that I'm starting to notice sagging, but I'm not ready for cosmetic procedures yet..."

"I want to start doing something for my skin..."

For those individuals, facial acupuncture is a worthwhile option as "a first step toward improving your skin condition."

As research shows, its potential is beginning to be demonstrated by MRI and RCTs. That said, further research on long-term effects and optimal treatment frequency is still needed. The approach of working with your body's own restorative capacity to nurture your skin, when viewed over the long term, may lead to sustainable beauty.

About Kiyo Harikyudo

At Kiyo Harikyudo, we specialize in mobile Japanese acupuncture throughout the Osaka area. We bring treatment to your hotel, Airbnb, or home.

What we offer:

• Authentic Japanese acupuncture using the same techniques as the studies referenced here

• Ultra-fine, gentle needles

• Consultations available in English and Chinese

• Late-night and early-morning appointments available (until midnight in Osaka city　Namba area)

• Affordable prepaid ticket plans for continued care

Why not experience for yourself what Japanese facial acupuncture can do for your skin?

📲 Book via LINE or Instagram DM (@kiyoharikyudo)

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References

1. Misago M, Yamazaki T, Sato M, Ito K. Effect of facial acupuncture on cheek skin lift: A randomized controlled trial. Journal of the Japan Society of Mibyo. 31(1):8-14, 2025.

2. Ogino M, Iijima M, Okada Y, Okuda I. Effect of Facial Acupuncture Stimulation: MRI-Based Masseter Muscle Volume Analysis and Questionnaire Evaluation. Aesthetic Surgery Journal Open Forum, Volume 6, 2024, ojae109.

3. Haghir H, Yazdanpanah MJ, Farahmand SK, Khadem-Rezaiyan M, Azizi H. Is Acupuncture Effective in Diminishing Frown Lines? Evidence From a Randomized Controlled Trial. J Cosmet Dermatol. 2025 Apr 7;24(4):e70144.

4. Frontiers in Bioengineering and Biotechnology. Fibroblasts as key cellular targets in acupuncture. 2025.

5. Yamazaki T. The diverse possibilities of facial acupuncture. Haritohito. 2025. https://haritohito.jp/manabi/yamazakitasuku_sp04/

6. Yamasaki S, Anno F, Koga Y, Sakai Y. Effects of acupuncture stimulation on facial skin blood flow. Journal of the Japan Society of Acupuncture and Moxibustion. 68(2):104-112, 2018. DOI: 10.3777/jjsam.68.104

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This article is based on explanations by Dr. Tasuku Yamazaki (Ph.D. in Acupuncture and Moxibustion), Lecturer at Meiji University of Integrative Medicine, with additional literature review and analysis.