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Hydrogels for Osteochondral
Tissue Engineering
Journal of Biomedical

(March 2020)
Anti-Wrinkle Activity
& Transdermal Delivery
of GHK Peptide
Journal of Peptide Science
(March 2020)
Pulsed Glow Discharge
to GHK-Cu Determination
International Journal
of Mass Spectrometry

(March 2020)
Protective Effects of GHK-Cu
in Pulmonary Fibrosis
Life Sciences
(January 2020)
Anti-Wrinkle Benefits
of GHK-Cu Stimulating
Skin Basement Membrane
International Journal of Molecular Sciences
(January 2020)
Structural Analysis
Molecular Dynamics of
Skin Protective
TriPeptide GHK
Journal of Molecular Structure
(January 2020)
In Vitro / In Vivo Studies
pH-sensitive GHK-Cu in
Superabsorbent Polymer
GHK Enhances
Stem Cells Osteogenesis
Acta Biomaterialia
Antibacterial GHK-Cu
Nanoparticles for
Wound Healing
Particle & Particle (2019)
Effect of GHK-Cu
on Stem Cells and
Relevant Genes
OBM Geriatrics
GHK Alleviates
Neuronal Apoptosis Due
to Brain Hemorrhage
Frontiers in Neuroscience
Endogenous Antioxidant
International Journal of Pathophysiology and Pharmacology (2018)
Regenerative and
Protective Actions of
GHK-Cu Peptide
International Journal of
Molecular Sciences
Skin Regenerative and
Anti-Cancer Actions
of Copper Peptides
GHK-Cu Accelerates
Scald Wound Healing
Promoting Angiogenesis
Wound Repair and

GHK Peptide Inhibits
Pulmonary Fibrosis
by Suppressing TGF-β1
Frontiers in Pharmacology
Skin Cancer Therapy
with Copper Peptides
The Effect of Human
Peptide GHK Relevant to
Nervous System Function
and Cognitive Decline
Brain Sciences (2017)
Effects of Tripeptide
GHK in Pain-Induced
Aggressive Behavior
Bulletin of Experimental
Biology & Medicine
GHK-Cu Elicits
In Vitro Alterations
in Extracellular Matrix
Am Journal of Respiratory
and Critical Care Medicine

Selected Biomarkers &
Copper Compounds
Scientific Reports

GHK-Cu on Collagen,
Elastin, and Facial Wrinkles
Journal of Aging Science
Tri-Peptide GHK-Cu
and Acute Lung Injury

Effect of GHK Peptide
on Pain Sensitivity
Experimental Pharmacology

New Data of the
Cosmeceutical and
TriPeptide GHK
SOFW Journal
GHK Peptide as a
Natural Modulator of
Multiple Cellular Pathways
in Skin Regeneration
BioMed Research (2015)
Resetting Skin Genome
Back to Health
Naturally with GHK
Textbook of Aging Skin
GHK-Cu May Prevent
Oxidative Stress in Skin
by Regulating Copper and
Modifying Expression of
Numerous Antioxidant Genes Cosmetics (2015)
GHK Increases
TGF-β1 in
Human Fibroblasts

Acta Poloniae

The Human Skin Remodeling Peptide Induces Anti-Cancer
Expression and DNA Repair Analytical Oncology
Resetting the
Human Genome to Health
BioMed Research
Enhanced Tropic Factor Secretion of Mesenchymal
Stem Cells with GHK
Acta Biomater
Anxiolytic (Anti-Anxiety)
Effects of GHK Peptide
Bulletin of Experimental
Biology & Medicine
Lung Destruction and
its Reversal by GHK
Genome Medicine
TriPeptide GHK Induces
Programmed Cell Death
of Neuroblastoma
Journal of Biotechnology
Stem Cell
Recovering Effect
of GHK in Skin
Peptide Science
Skin Penetration of
Copper Tripeptide in Vitro
Journal of International
Inflammation Research
Possible Therapeutics
for Colorectal Cancer
Journal of Clinical and
Experimental Metastasis
Methods of Controlling
Differentiation and
Proliferation of Stem Cells
Effects of
Copper Tripeptide
on Irradiated Fibroblasts
American Medical Association
Avoid Buying Fake Copper Peptides Dangerous

Skin Types and Sun Exposurewoman naked in the sun

Children in general are very sensitive to sunlight and have very thin skin that burns quickly but tans slowly. They should not be exposed to sunlight for more than 5-10 minutes. Infants (under 1 year) should not be exposed to intense sunlight at all.

Persons with very light skin, reddish hair and lots of freckles are most sensitive to sunlight. They may burn very quickly and tan very slowly. People with this type of complexion should avoid unprotected exposure to intense sunlight of longer than 20 minutes.

Light skin, in persons who are blond or strawberry blonde and often freckled also burns quickly and tans slowly. People with this complexion should avoid unprotected exposure to intense sunlight of longer than 20 to 30 minutes. Darker skin tones are more protective against sunlight but remember that even the darkest complexion doesn't make you immune to sunburn.

Protective clothing and a wide brimmed hat can protect when you are outside. Remember that UV rays are present even on cloudy days. Sunlight is strongly reflected from sand, snow, ice, and concrete and can increase your direct sunlight exposure up to 50%.

Wear sunglasses that filter out ultraviolet light to protect your eyes.

Be especially careful about sun exposure if you take medications like tetracycline, antihistamines, "sulfa" drugs, diuretics and some oral contraceptives. The combination of some drugs and sunlight can decrease the time needed to produce sunburn. (See below, Special Sunlight Sensitivities)

Types of Ultraviolet Radiation (UV)

Suntans are produced by two types of ultraviolet radiation in sunlight.

UVA rays constitute 90-95% of the sun's ultraviolet light reaching the earth and have a relatively long wavelength (320-400 nm) directly adjoining the violet end of the visible light spectrum. UVA light penetrates the furthest into the skin and is the primary inducer of tanning response in humans

UVB rays are partially absorbed by the ozone layer and have a medium wavelength (290-320 nm). They do not penetrate the skin as far as the UVA rays do but contain more energy and activate the synthesis of vitamin D and the absorption of calcium and other minerals. UVB rays are the primary cause of sunburn and of the most concern for skin and eye damage.

Special Sunlight SensitivitiesWomen getting bride ready

A number of drugs, photosensitizers and disease conditions increase your sensitivity to ultraviolet light. Suntanning should be avoided or used with special caution if you are in one of these categories.

Drugs include:

  1. Tetracyclines ( Declomycin Vibramycin)
  2. Thiazide Diuretics (Diuril, Hydrodiuril, Hygroton, Dyazide)
  3. Hypoglycemic agents (Antidiabetics)
  4. Sulfonamides
  5. Phenothiazines (Phenergan, Thorazine, Stelazine, Compazine )
  6. Nalidixic Acid
  7. Quinidine and Quinine
  8. Lomotil
  9. Griseofulvin
  10. Psoralens

Topical photosensitizers include:

  1. Oil of Bergamot (perfumes, cologne)
  2. Some deodorant soaps
  3. Plants occasionally (figs, limes, celery, parsnips)

Photosensitivity Diseases include:

  1. Herpes Simplex
  2. Porphyrias (Erythropoietic Proto-porphyria, Porphyria)
  3. Discoid and Systemic Lupus Erythematosus
  4. Polymorphous Light Eruption
  5. Xeroderma Pigrnentosa
  6. Solar Urticaria
  7. Dermatomyositis
  8. Actinic Reticuloid

Questions or Advice?

Email Dr. Loren Pickart at

Call us at 1-800-405-1912 Monday Through Friday (8 am to 6 pm) PST