- Healthy circulation and oxygen delivery
- A strong, well-hydrated skin barrier
- Balanced oil production
- Normal collagen and connective-tissue maintenance
- Controlled inflammation
- Adequate sleep and tissue repair
- Sufficient protein, vitamins, minerals, and essential fatty acids
- A nervous system that can recover appropriately after stress
The skin is not isolated from the rest of the body. It communicates continuously with the nervous, immune, hormonal, digestive, and circulatory systems. That is why inadequate nutrition, chronic stress, poor sleep, digestive problems, hormonal changes, and illness can sometimes become visible in the face.
What Produces the Appearance of Healthy Skin?
Skin tends to appear brighter and healthier when its surface is smooth, adequately hydrated, and relatively free of inflammation.
The outermost portion of the skin, called the stratum corneum, helps prevent excessive water loss while protecting the body from irritants and microorganisms. When this barrier is functioning well, the surface reflects light more evenly and appears smoother.
When the barrier becomes dry, irritated, or damaged, the skin may appear:
- Dull
- Rough
- Flaky
- Uneven
- Red or inflamed
- More sensitive
- More prone to fine surface lines
Healthy skin therefore requires both external protection and adequate internal nutritional support.
The Brain–Skin Connection
The brain and skin communicate through nerves, hormones, immune chemicals, and blood vessels. Stress activates the sympathetic nervous system and the hypothalamic-pituitary-adrenal axis, producing changes in cortisol, adrenaline, inflammatory signaling, circulation, immune activity, and oil production.
Research has associated psychological stress with:
- Slower recovery of the skin barrier
- Delayed wound healing
- Increased inflammation
- Increased oil production in susceptible people
- Flare-ups of acne, eczema, psoriasis, rosacea, and hives
- Increased scratching or skin-picking behavior
- Poorer sleep and reduced tissue-repair time
Stress does not affect everyone’s skin in exactly the same way. One person may develop acne, another may experience dryness, and someone else may notice itching, flushing, or a generally tired appearance.
The important point is that prolonged stress is not merely an emotion. It produces measurable physiological changes throughout the body.
How Neurotransmitters Influence the Complexion
Neurotransmitters such as serotonin, dopamine, norepinephrine, acetylcholine, and gamma-aminobutyric acid—better known as GABA—help regulate mood, motivation, alertness, sleep, circulation, digestion, immune responses, and the body’s reaction to stress.
They do not act like cosmetic ingredients that directly “brighten” the face. Their effects are broader.
For example:
Serotonin
Serotonin participates in mood regulation, sleep, appetite, intestinal function, vascular activity, and communication between the nervous and immune systems.
Most of the body’s serotonin is associated with the digestive system, although serotonin produced in the intestine does not simply travel into the brain. The intestinal and central nervous systems have related but distinct serotonin systems.
Poor sleep, emotional strain, digestive disturbance, inadequate nutrition, and certain medications may influence serotonin-related physiology.
Dopamine
Dopamine is involved in motivation, reward, attention, movement, and goal-directed behavior.
When motivation and energy are low, people may be less likely to:
- Prepare nutritious meals
- Exercise
- maintain a consistent bedtime
- Drink enough water
- Follow a skin-care routine
- Avoid excessive sugar, alcohol, or stimulants
Dopamine therefore influences the complexion partly by influencing behavior and daily health habits.
Norepinephrine and Adrenaline
Norepinephrine and adrenaline help the body respond to immediate challenges. They increase alertness and alter heart rate, circulation, and blood-vessel tone.
This response is useful during a genuine emergency. Problems may develop when the body remains in a prolonged state of physiological alarm without adequate recovery.
GABA
GABA is one of the nervous system’s major inhibitory neurotransmitters. It helps limit excessive nervous-system excitation and supports relaxation and sleep.
Poor stress recovery and inadequate sleep may indirectly affect skin repair, inflammation, appetite, glucose regulation, and food choices.
Cortisol and the Stressed Appearance
Cortisol is an essential hormone. It helps regulate blood glucose, metabolism, inflammation, blood pressure, and the response to stress.
The problem is not that cortisol exists. The problem is prolonged or poorly regulated stress signaling.
Chronically disrupted stress physiology may contribute to:
- Poorer sleep
- Delayed healing
- Changes in immune activity
- Increased appetite or cravings
- Greater blood-sugar variability
- Reduced adherence to healthy routines
- Aggravation of inflammatory skin conditions
The familiar “stressed” appearance may therefore represent a combination of reduced sleep, muscular tension, dehydration, inflammation, altered circulation, and inconsistent nutrition.
Nutrition for a Healthy Skin Barrier
The skin is constantly renewing itself. It requires amino acids, essential fats, vitamins, minerals, water, and energy to perform that work.
A healthy-skin diet should begin with ordinary nutrient-dense foods rather than depending entirely on supplements.
1. Eat Adequate Protein
Protein supplies amino acids used to make:
- Collagen
- Keratin
- Enzymes
- Neurotransmitter precursors
- Immune proteins
- Connective tissue
- New skin cells
Useful protein sources include:
- Eggs
- Fish and seafood
- Poultry
- Beef
- Greek yogurt and cottage cheese
- Beans and lentils
- Tofu and tempeh
- Nuts and seeds
People who chronically under-eat, follow highly restrictive diets, recover from illness, or have digestive and absorption problems may not receive enough usable protein.
Protein requirements vary with age, body size, activity, kidney function, health status, and recovery needs.
2. Include Essential Fatty Acids
The skin barrier contains lipids that help retain moisture and maintain cell-membrane function. Essential fatty acids must be obtained from food because the body cannot manufacture all of them in sufficient amounts.
Helpful foods include:
- Salmon
- Sardines
- Trout
- Herring
- Walnuts
- Chia seeds
- Ground flaxseed
- Avocados
- Extra-virgin olive oil
Omega-3 fatty acids also participate in inflammatory regulation. They may be especially helpful when a person’s diet contains very little fish or when inflammatory balance is a concern.
3. Obtain Enough Vitamin C
Vitamin C is required for normal collagen formation and contributes to antioxidant protection.
Food sources include:
- Bell peppers
- Citrus fruit
- Kiwi
- Strawberries
- Guava
- Broccoli
- Brussels sprouts
- Tomatoes
Vitamin C works best as part of a complete nutritional program. It cannot compensate for inadequate protein, poor sleep, smoking, excessive sun exposure, or an otherwise nutrient-poor diet.
4. Eat Colorful Vegetables and Fruit
Brightly colored plant foods contain carotenoids, flavonoids, polyphenols, vitamin C, and numerous other compounds that support antioxidant defenses.
Examples include:
- Carrots
- Sweet potatoes
- Tomatoes
- Dark leafy vegetables
- Red cabbage
- Berries
- Cherries
- Citrus fruit
- Herbs and spices
A varied diet is generally preferable to relying on one highly marketed “superfood.”
These foods can support the body’s internal defenses, but they do not replace sunscreen or appropriate sun protection.
5. Do Not Overlook Zinc
Zinc participates in immune function, wound healing, protein synthesis, antioxidant activity, and normal skin maintenance.
Food sources include:
- Oysters and other shellfish
- Beef
- Poultry
- Pumpkin seeds
- Beans
- Dairy products
- Eggs
Both zinc deficiency and excessive zinc supplementation can cause problems. Long-term high-dose zinc may interfere with copper balance.
6. Consider Selenium and Copper Balance
Selenium and copper contribute to antioxidant enzymes, connective-tissue function, pigment formation, and immune activity.
Food sources include:
- Seafood
- Eggs
- Meat
- Nuts and seeds
- Beans
- Whole grains
More is not necessarily better. Excessive selenium can cause hair and nail changes and other adverse effects.
7. Correct Iron or Vitamin B12 Deficiency When Present
Iron is necessary for hemoglobin and oxygen transport. Vitamin B12 and folate are necessary for normal blood-cell production and neurological function.
Deficiencies may contribute to:
- Pallor
- Fatigue
- Weakness
- Shortness of breath
- Reduced exercise tolerance
- Hair changes
- Mouth or tongue symptoms
Iron should not be taken casually without determining whether it is actually needed. Excess iron can be harmful, and fatigue does not automatically mean iron deficiency.
8. Support Digestion and Nutrient Absorption
A person may consume nutritious foods but still have difficulty digesting or absorbing nutrients.
Possible warning signs include:
- Persistent bloating
- Reflux
- Chronic diarrhea or constipation
- Unexplained weight loss
- Greasy or unusually pale stools
- Abdominal pain
- Food intolerance
- Persistent anemia
- Vitamin deficiencies despite adequate intake
The health of the digestive system can influence nutrient availability, immune signaling, inflammatory balance, and communication along the gut-brain axis.
Persistent digestive symptoms deserve proper evaluation rather than being covered up indefinitely with supplements.
Blood Sugar and the Complexion
A diet dominated by sugary drinks, refined flour, candy, and highly processed snack foods may displace protein, fiber, vitamins, minerals, and healthy fats.
Repeatedly elevated blood glucose can also promote glycation, a process in which sugars react with proteins. Collagen and elastin are among the structural proteins that can be affected over time.
This does not mean a person must eliminate every carbohydrate. A more practical approach is to build meals around:
- Protein
- Vegetables
- Fiber-rich carbohydrates
- Healthy fats
- Minimally processed foods
Examples include:
- Eggs, vegetables, berries, and whole-grain toast
- Salmon, green vegetables, lentils, and olive oil
- Greek yogurt, walnuts, chia seeds, and fruit
- Chicken, brown rice, and mixed vegetables
- Beans, avocado, vegetables, and corn tortillas
Pairing carbohydrates with protein, fat, and fiber may help produce a steadier post-meal response than eating refined carbohydrates alone.
Hydration Helps—but Water Is Not a Miracle Treatment
Water is essential for circulation, temperature regulation, digestion, kidney function, and normal cellular activity.
Dehydration may contribute to dry mouth, fatigue, headache, reduced exercise tolerance, and a tired appearance. However, forcing excessive amounts of water will not automatically remove wrinkles or cure a damaged skin barrier.
Hydration should be individualized according to:
- Thirst
- Physical activity
- Environmental temperature
- Body size
- Diet
- Pregnancy or breastfeeding
- Kidney, heart, and endocrine function
- Medication use
Water-rich foods, soups, vegetables, and fruit also contribute to fluid intake.
Sleep Is One of the Most Important Skin-Recovery Tools
Sleep supports:
- Tissue repair
- Immune regulation
- Hormonal balance
- Glucose control
- Appetite regulation
- Emotional stability
- Memory and nervous-system recovery
Poor sleep can also make a person more likely to consume excess sugar, skip exercise, rely on stimulants, and have difficulty managing stress.
Practical sleep-support measures include:
- Keeping a consistent wake time
- Receiving outdoor light early in the day
- Reducing bright light late at night
- Keeping the bedroom dark, quiet, and comfortably cool
- Avoiding heavy meals immediately before bed
- Limiting caffeine later in the day
- Avoiding alcohol as a sleep aid
- Maintaining regular physical activity
Persistent insomnia, loud snoring, witnessed pauses in breathing, morning headaches, or excessive daytime sleepiness may require professional evaluation.
Proper Stress Handling
Telling someone simply to “stop stressing” is not useful. Stress management requires both reducing avoidable stressors and teaching the nervous system how to return to a calmer state.
Identify the Source
Stress may arise from:
- Pain
- Illness
- Financial pressure
- Relationship conflict
- Work overload
- Caregiving
- Poor sleep
- Excessive digital stimulation
- Nutritional instability
- Blood-sugar fluctuations
- Lack of physical activity
- Feeling unable to control one’s circumstances
The correct solution depends partly on the source. Breathing exercises may help regulate the immediate response, but they do not replace solving a serious practical problem.
Use Physical Activity
Appropriate physical activity helps many people regulate tension, circulation, sleep, insulin sensitivity, and mood.
Useful options include:
- Walking
- Resistance exercise
- Swimming
- Cycling
- Mobility exercises
- Stretching
- Outdoor recreation
Exercise should be adjusted for the individual’s condition, physical capacity, injuries, and cardiovascular health.
Practice Slow Breathing
A simple calming exercise is to breathe gently through the nose and make the exhalation longer than the inhalation.
For example:
- Inhale gently for approximately four seconds.
- Exhale slowly for approximately six seconds.
- Continue for two to five minutes.
- Keep the breathing comfortable rather than forcing a very deep breath.
The purpose is not to pretend the problem does not exist. It is to reduce unnecessary physiological overactivation so the problem can be addressed more effectively.
Reduce Unnecessary Stimulation
Continual alerts, social-media conflict, frightening news, excessive caffeine, and late-night screen use can keep the nervous system activated.
Helpful boundaries may include:
- Turning off nonessential notifications
- Scheduling times to check messages
- Avoiding arguments immediately before bed
- Reducing late-night news consumption
- Taking brief outdoor breaks
- Creating periods without screens
Address Persistent Emotional Distress
Chronic anxiety, depression, trauma, grief, or burnout cannot always be corrected through nutrition alone.
Professional counseling, appropriate medical care, social support, spiritual support, exercise, sleep restoration, and nutritional correction may all have roles.
Seeking help is not a failure of willpower. It is an appropriate response when the nervous system remains overwhelmed.
Recommended Nutrients for Skin, Stress, and Recovery Support
The following nutrients may be considered according to a person’s diet, symptoms, medications, health history, examination findings, and laboratory results.
Omega-3 Fatty Acids
Omega-3 fatty acids participate in cell-membrane function and inflammatory regulation.
They may be considered when oily fish intake is low or when additional nutritional support is appropriate.
Vitamin C
Vitamin C is necessary for normal collagen formation and antioxidant function.
It may be particularly relevant when vegetable and fruit intake is inadequate or when nutritional demands are increased.
Zinc
Zinc supports wound healing, immune function, protein synthesis, and skin maintenance.
It should be balanced with copper when used in substantial amounts for extended periods.
Vitamin D
Vitamin D participates in immune regulation and numerous cellular processes.
Supplementation is most rational when intake, sun exposure, risk factors, or laboratory testing indicate that additional support is needed.
B-Complex Vitamins
B vitamins participate in energy metabolism, nervous-system function, red-blood-cell production, and methylation pathways.
Needs may be increased or deficiencies may be more likely in people with restrictive diets, certain digestive disorders, alcohol overuse, or medication-related nutrient depletion.
Magnesium
Magnesium participates in hundreds of enzyme reactions and is involved in neuromuscular function, energy production, glucose metabolism, and normal nervous-system regulation.
Different forms of magnesium have different absorption and gastrointestinal effects.
Collagen Peptides
Collagen peptides provide amino acids used in connective-tissue metabolism. Some clinical studies have reported modest improvements in skin hydration or elasticity, but results differ among products and studies.
Collagen does not replace total dietary protein, vitamin C, sleep, exercise, sun protection, or appropriate medical care.
Protein or Amino-Acid Support
Protein supplementation may be useful when a person cannot meet protein requirements through ordinary food because of appetite, schedule, illness, recovery demands, or dietary restrictions.
The type and amount should be selected according to the individual.
Probiotics and Digestive Support
The gut, immune system, and nervous system communicate extensively. However, probiotics are strain-specific and should not all be treated as interchangeable.
Digestive enzymes, probiotics, prebiotics, fiber, or other digestive support may be useful in selected situations, but persistent digestive complaints should be evaluated properly.
Adaptogenic and Calming Nutrients
Certain herbs and nutrients are marketed to support stress resilience or relaxation. These may affect medications, blood pressure, thyroid function, sedation, pregnancy, and other health conditions.
They should be selected according to the individual rather than combined indiscriminately.
You might not need all of these nutrients. Dr. Keefe can help you decide which products are appropriate based on your diet, symptoms, health history, examination findings, medications, and individual needs.
Professional-Grade Nutritional Supplements
Professional-quality supplements and nutritional support products are available through the Keefe Clinic Fullscript dispensary:
https://us.fullscript.com/welcome/jkeefe-dc
A Practical Daily Plan
Morning
- Obtain outdoor light shortly after waking
- Drink water according to thirst
- Eat a protein-containing breakfast
- Include fruit or vegetables
- Avoid beginning the day with sugar alone
- Use appropriate sun protection
Midday
- Eat a balanced meal containing protein, vegetables, healthy fat, and fiber
- Take a brief walk when possible
- Avoid relying exclusively on caffeine for energy
- Pause for several slow breaths before returning to stressful work
Evening
- Eat a nutrient-dense meal without routinely overeating immediately before bed
- Reduce alcohol
- Dim lights and reduce unnecessary stimulation
- Stretch, walk, pray, meditate, read, or use another constructive wind-down routine
- Keep bedtime and waking time reasonably consistent
Weekly
- Eat oily fish or obtain another dependable omega-3 source
- Consume vegetables and fruit of several different colors
- Perform appropriate resistance and aerobic exercise
- Spend meaningful time outdoors
- Create time for relationships, recreation, worship, or other restorative activities
- Address persistent pain rather than allowing it to continually disturb sleep and stress physiology
The Bottom Line
A healthy glow does not come from one neurotransmitter, vitamin, serum, detoxification product, or superfood.
It reflects coordinated physiology:
- Healthy circulation
- A resilient skin barrier
- Adequate protein and essential fats
- Proper vitamin and mineral status
- Controlled inflammation
- Effective digestion and absorption
- Restorative sleep
- Appropriate exercise
- Protection from excessive ultraviolet exposure
- A nervous system capable of recovering after stress
Topical skin care may be helpful, but lasting health also depends on what is happening beneath the surface.
Eat real food. Obtain adequate protein. Correct genuine deficiencies. Sleep consistently. Move your body. Address persistent digestive problems. Limit excessive sugar, alcohol, and stimulants. And treat stress recovery as an essential part of health rather than an optional luxury.
Supporting Research and Patient Resources
- The impact of stress on epidermal barrier function
- The impact of psychological stress on wound healing
- Brain–skin connection: stress, inflammation, and skin aging
- Skin barrier function and inflammation
- Nutritional skin care: micronutrients and fatty acids
- The potential uses of omega-3 fatty acids in dermatology
- Nutrition and aging skin: sugar and glycation
- Oral collagen supplementation: a systematic review
- American Academy of Dermatology: stress-related skin conditions
- Keefe Clinic website
- Keefe Clinic Fullscript dispensary
Keefe Clinic
Dr. John H. Keefe, III, D.C., P.C.
5016 S. 79th East Ave.
Tulsa, Oklahoma 74145
51st & Memorial in the Fontana Center
Phone: 918-663-1111
Fax: 918-663-2129
Email: docjohn@keefeclinic.com
Website: KeefeClinic.com
For professional-quality supplements:
https://us.fullscript.com/welcome/jkeefe-dc
This information is provided for general educational purposes and is not intended to diagnose or treat an individual condition. Persistent skin changes, severe acne, unexplained hair loss, unusual pigmentation, nonhealing lesions, or other concerning symptoms should be evaluated by an appropriate healthcare professional.
If you know someone who is in pain or dealing with another health problem, tell them about chiropractic and Keefe Clinic.Edit