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Skin care advice from a dermatologistSkin Care

Skin care needs to be individualized. Factors such as your age, your degree of sundamage, associated problems (eg eczema, acne, irregular pigmentation) have a major influence on how your skin should be managed.

Skin Care Basics

  • Have a baseline skin assessment done by your dermatologist: if you have any underlying problems your skin specialist can guide you in the right direction.
  • Wash your skin twice per day. QV wash is one of my favourite cleansers. Cleansers don’t need to be expensive, they just need to clean the skin well. Cleansers are rapidly washed off, so active ingredients have little time to work.
  • Moisturise your skin twice a day: your skin type will determine what moisturizers you need
  • Manage problems: use products to treat your problems eg bleaching creams for abnormal pigmentation, medicated acne creams if you have pimples, steroid creams if you have eczema. (Read my article below about cosmeceuticals before buying products)
  • PREVENT: the best antiaging cream available on the market is SUNSCREEN.
    Apply it regularly and stay out of the sun.

Cosmeceuticals - what works?

CosmeceuticalsSkin care is no longer about a brand. Consumers are informed and are now asking me about the latest “ingredient” that has age defying benefits, reduces pigmentation or can improve acne. Cosmeceutical is a household name, considered by the informed to be as important to their health as brushing their teeth.

“What is that secret ingredient doctor?”, is how my consultations frequently begin. This is often immediately followed by the “plastic bag”. Jammed to the brim with products, the patient slowly pulls out each product one after the other. This one stung, this one cost $900 and didn’t do a thing, this one caused pimples, this a rash and so on. Fielding through the labels words like Coenzyme X, Ketoenzyme this and that, polysaccharide such and such jump out. They sound good, but are they really? The world of cosmeceuticals is not regulated by an authority, such as the FDA, or TGA. Just because an additive looks impressively scientific and terrific, in truth, it may represent no more than marketing mumbo jumbo. But to the consumer and many doctors and aestheticians, fielding your way through what is cosmetic company hype and what is real and effective is, to be frank, a complete nightmare.

Cosmeceutical means a scientifically designed topical agent applied to the skin that has both cosmetic and quasi pharmaceutical effects. The effects are not as therapeutic as a drug but are claimed to contain active ingredients that have proven benefits. Some cosmeceuticals definitely have a role in enhancing the effects of procedures and prescription medications. Separating fact from fiction will mean the difference between ordinary and superb results for your clients and will keep them coming back.

Common Traps

cosmeceuticalsWhen selecting cosmeceuticals to sell, it’s not just the ingredient itself that is important. Concentration, pH and the type of the type of cream added with the ingredient have a major impact on the effectiveness of that ingredient. For instance, a product may contain retinol; but we know that only small amounts of retinol or retinyl palmitate can be converted in the skin to the active ingredient that produces all the desired dermal anti-aging effects. This is why, very often it is prescription strength preparations contain synthetic retinoic acid (eg tretinoin, adaplene, tazarotene) that are required. Some cosmetic companies; however, have perfected the art of delivering valuable concentrations of retinol to the skin, for example, skinceuticals.

In a similar vein to the retinoid issue, Vitamins can be unstable and other ingredients added to the cream can effect their activity. To be frank, we really don’t know a lot about the benefits of topical application of vitamins, which is surprising seeing their large presence in the market place. Hydroxy acids are effective, but the concentration and pH in a topical preparation really must be significant to have the desired reported effects. Ask the representative of the brand curly questions to prove that the ingredients in their products are stable and of adequate concentrations. The below list is not exhaustive but is designed as a guide to common scientifically proven ingredients.

What works in a nutshell?


Anti-aging Products
  • Retinoids
  • Pentapeptides
  • AHA and BHA
  • Antioxidants
  • Sunscreens
Skin Lightening Agents
  • Tretinoin, regular AHA/BHA peels, Azelaic acid, tretinoin, arbutin, kojic acid, hydroquinone. *

* The use of hydroquinone in some countries is controversial

Effective cosmeceutical ingredients to look for and how they work

AGENT WHAT IT IS: The Science EFFECT
Retinoids
  • Vitamin A derivative
  • Antioxidant
  • Stimulate genes and proteins ie ↑ collagen production, ↑vitamin E, growth factors, glycosaminoglycans. ↓size of sebaceous glands
  • Improve appearance of aged and photo damaged skin; ↓’s wrinkles and laxity, smooths the skin
  • Bleach pigmented spots
  • Prescription based products most effective
  • Not all cosmetic retinoid products have been proven to be active and to be absorbed by the skin
Hydroxyacids
  • Organic carboxylic acids
  • Include alpha hydroxy acids (AHAs) eg glycolic acid, lactic acid, citric acid, mandelic acid, malic acid, and tartaric acid and beta hydroxy acids (BHAs) eg salicylic acid
  • ↑epidermal shedding, ↑synthesis of GAGs, improve the quality of elastic fibers, ↑the density of collagen.
  • ↓signs of skin aging
  • Bleach pigmented spots
  • Improve acne
  • Smooth skin and give it a more subtle texture
  • Scientific evidence to support all claims is still incomplete, but clinical results are exceptional. Concentration in over the counter products is often ineffective.
  • Buffering ensures the pH of the product does not change when it is applied to the skin.
Polyhydroxyacids (PHA’s)
  • Larger molecular weight than hydroxyacids, hence less dermal penetration
  • Thought to be less irritating than hydroxyacids
Antioxidants
  • Polyphenolic compounds (eg, catechins, flavonols, thioflavins, thearubigins) eg green tea
  • Lipoic acid
  • Coenzyme Q (ubiquinone): may reduce skin cell damage better than UV
  • Vitamin A, C and E
  • Antiaging and protective effects
  • Best scientific evidence exists for polyphenolic compounds eg that found in green tea
Peptides
  • Microcollagen pentapeptides
  • Stimulate fibroblasts to produce collagen
  • Lys-Thr-Thr-Lys-Ser pentapeptide (Matrixyl) is a potent stimulator of collagen
  • Copper peptides
Botanicals
  • These are “natural” ingredients, eg green teas, soy, grape seed, chamomile,allantoin, and aloe
  • Very few botanicals have been proven to be effective in clinical trials. Green Tea and grape seed extract have been proven to be effective to help reduce skin cancer formation.
Vitamins
The value of oral vitamins is proven, but the role of topical vitamins is still controversal
A
  • Retinol, retinyl palmitate.
A
  • See retinoid above
C
  • Stimulates collagen repair
  • Regenerates VitaminE
C
  • Improve photodamage
  • Degraded by heat and light, hence unstable
E
  • Alpha and gamma tocopherol are the biologically active forms
  • Antioxidant (protects cell membranes
E
  • Reduces sun damage
B5
  • Panthenol
  • Humectant: draws water into skin
B5
  • Increases skin moisture
  • Helps skin cell metabolism.
Niacinamide
  • Amide derivative of niacin
Niacinamide
  • Anti skin cancer forming effects in-vivo, stable.
Essential Fatty acids
  • Composed of linoleic, linolenic and arachidonic acid
Essential Fatty acids
  • Improves skin barrier function

 

A referral is not always required for cosmetic consultations as these do not attract a Medicare rebate unless you have a medical problem.

If you are uncertain if you need a referral contact our helpful staff on (02) 9958 1555.
Our dermatologists request that you bring all of the cosmetic products you are using or have tried previously along to the consultation.

 

Last Updated on Wednesday, 18 February 2009 10:59
 
Northern Sydney Dermatology