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Micronutrients for skin, hair and nails

External signs of possible micronutrient deficiency:

  • Skin: dry, oily, inflammation, pigmentation disorders, warts, photosensitivity, age spots, inflammation, cellulite
  • Hair: brittle, dull, gray, falling out
  • Nails: brittle, stained, brittle, soft

Which micronutrient deficiencies lead to which symptoms on skin, hair and nails?

  • Iron deficiency: dry skin, rhagades (cracks in particularly dry skin), paleness, brittle nails, hair loss, susceptibility to infections
  • Vitamin C deficiency: Skin bleeding, insufficient collagen formation, bleeding gums, loosening of teeth (cf. scurvy)
  • Copper deficiency: depigmentation, spiral hair, impaired wound healing, worsening of iron absorption, disruption of tissue structure
  • Vitamin B3 (niacin) deficiency: Pellagra (dermatitis with hyperpigmentation and skin atrophy)
  • Zinc deficiency: Skin inflammation, hyperkeratosis (keratinization of the skin), acne, susceptibility to infections, dry, flaky skin (acroderamatitis enteropathica)
  • Biotin deficiency: depigmentation, alopecia, brittle nails, hair loss, flaky skin, especially on body openings (similar to zinc deficiency)

 

THE SKIN

 

  • The skin is the largest and heaviest organ in the human body (approx. 2 m²), it makes up almost 15% of the body weight (~ 10kg).
  • Over a length of 6-8 meters, the intestine or the intestinal mucusskin represents one of the largest contact surfaces with the outside world. It is a selective and effective filter (cf. Tight junctions / nutrient absorption / immune system) → intact intestinal mucosa = positive regulation of skin and mucous membranes!
  • The epidermis renews itself every 30 days in young people and every 60 days in older people. Around 80 billion cells are replaced, which shed off as horn cells (horn cells are the final differentiation stage of skin cells). 14 grams of dead cell material (“house dust”) is created every day - and billions of intestinal mucosa cells are renewed every hour.
  • There are close connections between the skin and the body's internal organs.

 

Tasks of the skin:

  • Protective function (barrier between the inside of the body and the outside world)
    • mechanical (injury, irritation, shock)
    • physical (cold, heat, melanin pigment formation with UV radiation)
    • chemical (protection against chemical toxic substances/acid protection)
    • biological (bacterial flora)
  • Immune organ (protection against germs and allergens)
  • Regulation of water balance and absorption of active ingredients
  • Sensory perception
    • Temperatures
    • Sense of touch
  • Communication (Human appearance)
    • Psychological communication organ (“mirror of health/soul”)
    • Body odor via scent glands
  • Regulation of body temperature (blood circulation and sweat release)
  • Hormone producer (Vitamin D synthesis)

 

Structure of the skin

  • Epidermis (upper skin)
    • Despite the small thickness of the epidermis (0.1 - 0.7 mm), five layers can be distinguished. These sit on a basement membrane, which in turn borders the dermis. The latter penetrates it with small, regular protuberances called papillae.
    • There are no blood vessels in the epidermis itself - it is nourished by diffusion from the underlying dermis.
    • The epidermis consists of a multilayered, keratinizing squamous epithelium. Where the horny layer is very thin, the blood shines through brightly pink from below.
  • Dermis (dermis, corium)
    • The dermis consists of a solid network of supple connective tissue fibers and gives the skin the necessary strength and elasticity.
    • It also contains nerves, blood and lymph vessels.
    • It is usually 1 - 2 mm thick and consists of two layers: the papillary body (stratum papillare) and an underlying, fiber-rich connective tissue layer called the reticular layer (stratum reticulare).
    • It contains larger nerves, blood and lymph vessels, hair follicles and sebaceous glands.
    • The largest water reservoir in the body is located in the dermis and subcutaneous cell tissue. About 1/3 of all liquid collects here.
    • On 1 cm² there are approx. 100 sweat glands, up to 40 sebaceous glands, about 200 pain receptors, approx. 100 receptors for sensing pressure, 12 for cold and 2 for heat messages.
    • Important components of the immune system are also present in the dermis: T lymphocytes, monocytes, macrophages, plasma and mast cells.
  • Subcutis (subcutaneous fatty tissue)
    • The subcutaneous cell tissue serves to attach the skin to the base; d.H it is the link between the body and its outer shell.
    • What is characteristic of this layer of skin is the abundance of fatty tissue, which can sometimes reach a thickness of 15 cm or more - especially on the abdominal skin.
    • The subcutaneous tissue is then connected to a muscle, bone, cartilage or other organ, which is attached with large fiber bundles.

 

 

Which micronutrients are particularly relevant for the skin?

  • Vitamin A
    • Important for the structure and function of the skin
    • Improves collagen formation, regulates cell differentiation and keratinization of the skin
    • As an antioxidant, protects against cell damage
    • Activates genes that particularly reduce the risk of light-induced tumors
    • Deficiency leads to dry skin with hyperkeratosis (increased keratinization of the skin) and hair loss
    • Can have a positive effect on acne and psoriasis
    • Dosage recommendation
      • preventive (DGE 2000): men: 1.0 mg, women: 0.8 mg
      • therapeutic (Pauling 1986): 6.0 mg (men & women)
    • Gamma-linolenic acid (e.g. contained in hemp seed oil)
      • Is installed in the membranes and maintains their fluidity
      • Binds moisture
      • Reduces inflammatory mediators (high doses of the omega-6 fatty acids linoleic acid and gamma-linolenic acid as well as the omega-3 fatty acid alpha-linolenic acid inhibit the pro-inflammatory (= pro-inflammatory) arachidonic acid, which, for example. is contained in relevant quantities in meat
      • Therapeutic dosage: 2-4 g gamma-linolenic acid per day; Effect after approx. 3 months of therapy (long-term therapy recommended)
    • Beta-carotene
      • Antioxidant
      • Accelerates skin tanning by increasing skin pigmentation
      • Reduction in skin redness (erythema intensity)
      • UV light absorber (photoprotective corresponding to sun protection factor 2)
    • Zinc
      • Zinc deficiency reduces vitamin A availability
      • Has an antimicrobial effect (e.g.b against Staphylococcus aureus, Pityrosporium orbiculare and propionebacteria, which produce acne-promoting free fatty acids)
      • Reduces sebum secretion (fewer pimples)
      • Can inhibit the replication of herpes viruses
      • Proven in the treatment of psoriasis and vitiligo
      • Faster wound healing
      • Inhibits 5-alpha-reductase activity of the skin resulting in less conversion of testosterone into pore-clogging (comedogenic) dihydrotestosterone
      • Therapeutic use v.a for acne and neurodermatitis:
        • Acne
          • Influencing testosterone metabolism by inhibiting 5-alpha-reductase and inhibiting sebum production; Effect on inflammatory processes
          • Typical dosage recommendations:
            • Acute: 30-50 mg/day
            • Duration: 15 mg/day
          • Neurodermatitis
            • Effect on the inflammatory process, support of lipid synthesis in the epidermis, suspected effect on itching
            • Typical dosage recommendations: 40-45 mg/day

       

      Relevant micronutrients regarding. Aesthetics / for aging skin and their typical dosages:

      • Hemp seed oil → Moisture / 1-2 g per day
      • Vitamin B9 (folic acid) → Pigmentation disorders / 400 mcg per day
      • ß-carotene → sun protection / 15-30 mg per day
      • Amino acids complex → regeneration
      • Vitamin C → collagen building / 500-2000 mg per day
      • Vitamin E → Cell membrane protection / 400-1000 I.E per day
      • Vitamin B complex → regeneration (v.a Biotin improves the structure of keratin)
      • Coenzyme Q10 → structure, strength / 30-100 mg per day
      • Vitamin B5 (pantothenic acid) → wound healing, moisture / 10-20 mg per day
      • Phytoestrogens such as Ashwagandha / for hormone-related skin aging during menopause / 60 mg per day
      • Zinc à oxidation protection à wrinkles and age spots / 15-30 mg per day
      • OPC from grape seed extract → strong antioxidant effect of the oligomeric proanthocyanidins (OPC); good against fine wrinkles and couperose (vasodilation, which becomes noticeable through redness in the face and décolleté)
      • Green tea: the polyphenols in tea are called catechins. The epigallo-catechin gallate has an approx. 100 times stronger antioxidant effect than vitamin C, e.g. in relation to fibroblasts (main component of connective tissue) and keratinocytes (cells of the epidermis that produce the horny substance keratin). In addition, NF-kB and interleukin-6 (involved in inflammatory processes) are inhibited in keratinocytes.

       

       

      Micronutrients in typical skin diseases:

      • Acne
        • Collective name for diseases of the sebaceous glands and hair follicles, which initially produce non-inflammatory blackheads (comedones), but which later also lead to a series of inflammatory, pathological skin changes (efflorescences) such as papules (nodules < 1 cm in diameter), pustules and nodules can create – v.a on the face, in the upper part of the chest and back and in the neck area.
        • Typical dosage of relevant micronutrients for acne:
          • Zinc / 30-50 mg (short term up to 100 mg, long term 15 mg) per day
          • Vitamin A / up to 20.000 IE per day
          • Vitamin C / 2-3 g per day
          • Vitamin E / 400-800 mg per day
          • Vitamin B complex / high dose
          • Gama-linolenic acid / 2-3 g per day
          • Omega-3 fatty acids / 1-1.5 g per day
          • Chromium / 200 mcg per day (metabolism regulating)
        • Neurodermatitis
          • Vitamin C: increases the limited activity of natural killer cells (NK), normalizes lymphocyte blastogenesis and reduces the concentration of IgE (immunoglobulin E) and eosinophils (are indicators of the need/consumption of white blood cells) / 2-3 g (or approx. 50-75 mg/kg body weight) per day
          • Vitamin E: lowers inflammatory prostaglandins and also IgE / 400 I.E per day
          • Calcium / 1000 mg per day
          • Magnesium / 400 mg per day
          • Zinc / 30 mg per day
          • Gamma-linolenic acid / 2-3 g per day
          • Omega-3 fatty acids / 1-1.5 g per day
          • Panthenol / 100-200 mg per day
          • Beta-carotene / 20-30 mg per day

         

         

        HAIR

        • The visible hair consists predominantly of dead horny cells and has 3 layers:
          • Marrow cells
          • Hair cortex made of keratin (hair and nails consist of ~90% keratin)
          • Squamous layer
        • Hair grows approx. 1 cm per month, slightly faster in warm weather. Men's hair grows slightly faster than women's hair.
        • Contrary to popular belief, cutting has no effect on hair growth.
        • A hair loss of approx. 60-80 hairs per day is normal.
        • If a hair has fallen out, a new hair will usually grow back in that area within 6-12 weeks.

         

        4 types of hair loss:

        • Scarring hair loss
          • Causes: Usually a side effect or consequence of diseases or inflammations of the scalp

        • Circular hair loss (alopecia areata)
          • A rather rare form of hair loss - inflammatory, usually reversible hair loss (autoimmune reaction), tinea capitis (“head fungus”), secondary syphilis, trichotillomania (affected people repeatedly pull out their own hair, which leads to hair loss), lupus erythematosus, etc
          • Therapy and typical dosages (laboratory controls of the individual parameters):
            • Zinc initially 250 mg, subsequently 10 - 40 mg per day
            • Iron: according to laboratory findings
            • B complex: high dose
            • Folic acid: 800 µg per day
            • Vitamin A: 5.000-max 20.000 IE per day
            • L-Methionine: 500 mg per day
            • Vitamin E: 400 - 800 mg per day

        • Androgenetic or hormonal hair loss
          • Local therapeutics
            • Alfatradiol (17-alpha-estradiol) = weak estrogen and 5-alpha-reductase inhibitor
            • Minoxidil 2% (potassium channel blocker, active ingredient from the group of antihypertensives)
          • Systemic therapy
            • For women: appropriate gestagen supplement for hormone therapy (chlormadinone, dienogest, cyproterone)
            • For men: Finasteride (5-alpha-reductase inhibitor)
        • Diffuse hair loss
          • Various triggers:
            • mental problems (stress, shocks, fear of loss)
            • Environmental toxins (mercury, pesticides, etc.)
            • Chemical products (hair care or hair dye)
            • Metabolic disease (diabetes, thyroid diseases)
            • Hormonal changes (postpartum period, breastfeeding, menopause, age)
            • Medicines (Heparin, Macumar, antibiotics, antiepileptics, chemotherapy drugs)
            • Iron deficiency
            • Malnutrition or malnutrition (diets, hyperacidity) → Neutralization occurs with the help of alkaline minerals, which are available in the body's various mineral depots (e.g. b the base of the hair) → hair loss can be the result
          • Therapy:
            • Dietary change
            • Intestinal cleansing and building up the intestinal flora
            • Healing clay shampoo
            • Ginger tonic to improve blood circulation
            • Anxiety and stress management
            • Supplementation with the following typical dosage:
              • Vitamin B7 (biotin) / 2.5-5.0 mg per day
              • Acetylcysteine ​​(ACC) / 100 mg per day (essential for hair keratin)
              • Zinc / 10 mg per day (important in cysteine ​​metabolism)
              • Vitamin B complex / high dose
              • Vitamin C / 500 mg per day (important for hair structure)
              • Vitamin E / 400 mg per day (for blood circulation)
              • Selenium / 100-200 mcg per day
              • Silica / 100-200 mg per day

         

         

         

        NAILS

        • Possible causes of brittle nails
          • Stress
          • Diet, one-sided nutrition
          • Thyroid disease
          • Hormonal changes (pregnancy)
          • Skin diseases (psoriasis), fungal diseases
          • Blood circulation problems (diabetes)
          • Medicines (antibiotics, antiepileptics)
          • Contact with detergents and chemicals
        • Micronutrients and typical dosages for brittle nails:
          • Zinc / 10-30 mg per day
          • Vitamin C / 500-1000 mg per day
          • Calcium / 500 mg per day
          • Iron / 10 mg per day (better: 40 mg every 2nd day)
          • Vitamin B complex / 5 mg per day
          • (Essential) amino acids

         

         

        General vital substances for hair and nails:

        • Copper, CoQ10 --> hair color
        • Zinc, iron --> structure, structure (white nail spots)
        • Vitamin C, B vitamins --> structure and strength
        • Vitamin B7 (Biotin) --> improves keratin
        • Vitamin E --> blood circulation
        • Amino acids --> structure (longitudinal nail grooves)

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