If I were to ask you what is the largest organ in the body what would you say? It's not the liver or the intestines but the skin, it does a very important job for us and how many of us take it for granted and don't look after it.
HOW THE SKIN WORKS
The basics so you will understand how the skin works. The skin is comprised of 3 layers, the Epidermis the layer you can see, the Dermis the true skin and the subcutaneous.Cosmetics only work on the Epidermis and you can see how deep it is, if you have ever experienced a blister. A blister is caused when friction causes the Epidermis and the Dermis to separate and the fluid within the blister is lymph. The Epidermis has no nerve endings or blood supply that is why removing the top layer of a blister is not painful, not to be recommended though as it exposes the Dermis which is rich in nerves and a blood supply to infection.
The skin has several functions to secrete sebum that oily substance on your skin, this is to help keep the skin moisturised by trapping moisture and forming a barrier together with sweat known as the 'Acid Mantle' The Acid Mantle is slightly acidic and acts as a Bacteriastat to inhibit bacteria. The skin secretes sebum via the sebaceous glands within the hair follicles and sweat via the Endocrine glands (there are another type of sweat glands know as Apocrine glands these are found in the axillary and pubic regions unlike Endocrine sweat bacteria act on Apocrine sweat quickly and this causes the characteristic Body Odour, these glands only become active after puberty and have a role to play in pheromones)
Our body temperature is regulated by the skin this is due to the peripheral circulation either dilating to bring blood to the extremities of the body like the skin causing flushing to help loose some of the heat and also by sweating for as the sweat evaporates heat rises with it. The opposite happens when its cold the body conserves heat to vital organs more important than the skin, giving a more white/bluish appearance and may even induce shivering. At the base of every hair follicle there is a tiny cilary muscle when its cold and we start to shiver this muscle contracts causing the hair to stand up trapping a layer of air next to the skin, giving the appearance of goosebumps. Within the Dermis there are sensory nerves that detect temperature. We also have an insulatory layer of fat in the subcutaneous.
Our skin is waterproof so absorbs very little, the only things that can permeate the skin are medications, this includes patches such as Nicotine and HRT and Essential oils (see Aromatherapy articles on Blog) COSMETICS CAN NOT. Do not believe the hype and sales talk ladies if it could be absorbed by the skin you you have to go to your Doctor for it and it would need to be licensed as a Medicine.
Our Skin is protected by sensory nerves that alert us to pain, pressure, touch, heat and cold, it is waterproof largely impermeable except to the substances above, fairly tough and it with its layer of fat below the dermis in the subcutaneous layer keeps us warm, protects our organs and bones, gives us shape. As fore mentioned the Acid Mantle helps protect from bacteria as bacterial growth is inhibited in its slightly acid environment. Melanocytes special little cells in the dermis increase as a result of UV light and give us tanning, the epidermis also thickens to help protect our skin. Also in the skin are mast cells and when they are damaged, they produce histomine, it gives the characteristic itching a weals associated by allergies, its function is to stimulate blood to the skin to repair and maintain it. However with allergies the body is hypersensitive producing this effect.
The skin also excretes some toxins through sweat but this is very very minimal, so do not believe the hype of some sales people who will suggest you have a detoxifying foot bath that will rid you of toxins as it changes the water to a dirty brown colour. Again this is sheer hype and nonsense for if ridding the body of toxins was that easy we wouldn't have a need for Dialysis Machines for those suffering kidney failure. It is the Liver, Kidneys and large Intestine that detoxify us.
Vitamin D is also formed in the skin as a result of the action of UV light acting on 7-dehydrocholesterol present in the skin, so everything in moderation we do need some sunlight.
CARING FOR THE SKIN
So you know know how the skin works and it's functions and that's great when everything is in balance. However skin is a very sensitive organ but as far as the body is concerned it is a lesser important organ that the heart, lungs, liver etc, so priority is given to important organs at times of stress, whether that is emotional stress i.e. worry etc. or physical stress such as extremes of temperature and its very cold.
What we put on the skin can throw it off balance, many people use soap and water, well thats fine for your body, but our face has more sebaceous glands, is more exposed to the elements and more open to micro-organisms. Why not soap and water? well soap is alkaline and remember the acid mantle is slightly acidic, this maintains an environment where micro-organisms are less likely to multiply and if you use an alkaline product you will strip away this protective layer, making the skin more susceptible to infection. Because our sebaceous glands tend to be more active on the face, and this increase of sebum in nature's moisturiser, there may be more of a tendency for them to become blocked, if infection enters the blocked pores the result it a spot. There are a number of cleansing bars on the market and water activated cleansers around for those of you who like the feel of water on your face.
The trouble and risk of blocked pores is magnified if there is also a build up of dead skin cells. Now it takes roughly 28 days for new cells in the basal layer of the epidermis to form and be shed, this time span increases with age, as we get older our skin becomes more sluggish, if we don't cleanse our skin adequately enough a layer of dead cells sit on the surface making our complexion dull, combined with sebum these dead cells can block pores causing blackheads. Inncidently blackheads are not dirt but sebum and dead cells form a plug and oxidise causing this this discolouration. In order to keep our complexions fresh and depending on the type of skin you have exfoliation should be carried out once to twice a week, with oily skin generally twice. There are various products on the market but avoid those exfoliators that are made from ground up nutshells and husks as these can be quite scratchy and can damage the surface of the skin leading to possible infection. Rather choose a product with fine micro beads. Some exfoliators work by dissolving dead skin cells and are often fruit based containing fruit acids or enzymes, these may irritate sensitive skin so its a good idea to patch test an area before proceeding.
But before choosing what cleanser to use on your skin, you need to know what type of skin you have. Firstly normal skin is a rarity, normal skin is like the skin children have, its neither dry or oily, theres no visible pores nor shine, it has a good texture and colour, no spots, blackheads and is plump and has good elasticity. Now how many of us can say we have normal skin? Oily skin often has visible pores particularly down the 'T zone' of our faces, it becomes shiny very quickly, it is prone to blackheads and spots, its doesn't have dry, flaky patches and often has a sallow colour about it and make up slides of the face quite quickly. Dry skin, has no obvious pores, doesn't have a tendency to blackheads or spots, can have flaky itchy areas, often feels tight after cleansing and a tendency to line and can often be more highly coloured. Combination skin is by far the most common type of skin, it often has an oil 'T zone' with normal, if your lucky outer areas or dry cheeks. It is a combination of either of the aforementioned types. So you have 4 skin types. Now if only it was that simple but the skin has different conditions that affect it. Firstly moisture, it may surprise you to know that even oily skin can become dehydrated as this is down to moisture content in the skin and not oil. Central heating, changes in temperatures, windy weather and not drinking enough water, too much coffee, tea and cola drinks and alcohol all affect our skin and can lead to dehydration. Oily skin favours better than most as sebum can trap some moisture but not enough to prevent moisture loss. So its important you keep yourself hydrated and drink plenty of water to start with and use the correct moisturiser for your skin type. Moisturiser does what it says, its job is to trap moisture in the skin, with dry skin moisturisers, they generally are more oil based than one designed for oily skin and so on.
Cleansing is a matter of preference but your skin type will guide you as I mentioned early, some people prefer the feel of water on their skin so a rinse off type of cleanser will suit them. But whatever way you cleanse your skin, cleanse it twice once to remove make up and the grime from the day and second to deep cleanse the skin. Which leads me on to eye make up remover. The skin around the eyes is very delicate and is the thinest skin thickness on our bodies so treat it with care. Do not treat it roughly or rub cleanser harshly around the eyes as this will stretch this delicate skin. Eye make up is designed for this sensitive area and not all facial cleansers suitable, check the packaging. Which leads on to all in one cleansers and wipes, these are fine short term but not ideal in the long term. Many of the wipes contain alcohol and irritate sensitive eye tissue and certainly the same wipe should not be used for both eyes due to the risk of cross infection, the same goes for cotton wool pads and tissues.
Toners do we need them? well if you use a water based rinse of cleanser no you don't as the water is suffice to tone and freshen the skin, but if you use a tissue off cleanser yes you do to remove any residue of cleanser and grime. These vary from hydrasols (i.e. rose water) to witch hazel, avoid alcohol on the face as it will remove the acid mantle.
It may surprise you to know that skin after the age of 25 is considered mature but after the age of 25 ageing signs start becoming apparent. Prevention is better than cure and a lot easier. We know from Part 1 how UV light contributes to ageing so be sure your moisturiser contains a sun protection level of at least 15 thats the first thing to be aware of. Drink plenty of water to maintain moisture levels and avoid caffeinated drinks as they are diuretics as encourage the kidneys to excrete more urine and can lead to dehydration. A good balanced diet with plenty of fruit and vegetables to give the cells the right nutrients. Avoid smoking I explained in an earlier article how this ages the skin and does so by ten years. And there is stress, now that is difficult to avoid but there are things you can do, you can lessen its affects by relaxation and I will be giving tips to avoid the damaging effects due to stress later.
Anti-wrinkle cremes, well if you read the earlier article in Part 1 no cosmetic can penetrate the epidermis, so I have to say ladies expensive skin cremes are a total waste of money. The only thing I would say is that avoid products with mineral oil as this oil sits on the surface of the skin, yes it traps the evaporation of moisture but it can block the pores but its fine to use on the body, instead use a vegetable oil based product and by that I don't mean 'Crisp and Dry' some examples are Almond oil, Jojoba oil, Olive oil. With expensive cremes you are paying for the packaging and nice jar. There are temporary anti-wrinkle fixers that work by temporarily tightening up the skin or have fillers and light reflective powders that soften the appearance of lines. Simple things like avoiding squinting in the sun or getting your eyes checked if you have difficulty in reading will prevent many a line forming around the eyes
Rise of the wrinkle busters: The Duchess of Cambridge's favourite anti-ageing cream is put to the test... with incredible results (and at around £50 it won't break the bank)
All moisturisers are essentially an emulsion of oil and water. The way to works is simple: putting it on the skin traps moisture to the surface, and stops the uppermost layers from becoming dry. But can using one really stop the ageing process - or even make us look younger?
Today, the answer is yes. Anti-ageing products available on the High Street are increasingly high-tech, created using techniques borrowed from advanced medical research. And they actually work - as I discovered when I put one famous Royal’s favourite face cream to the test.
For a month, I used The Duchess of Cambridge’s moisturiser of choice - from Karin Herzog range - which you can pick up in most department stores at around £50 for a 50ml pot. And scientists analysing my skin told me there was irrefutable evidence that my wrinkles had been reduced by 27 per cent. So how is this possible?
Experts call this ‘the age of the cosmeceutical’. That’s a term coined to cover high-tech skincare that falls into the gap between cosmetics, which by law should make only a very temporary change to the skin, and pharmaceutical products, which can be provided only with a doctor’s prescription, and bring about lasting changes.
Although it’s not a term recognised in law by the Medicines and Healthcare products Regulatory Authority (MHRA), which licenses medicines in the UK, it is a useful description as the lines between cosmetics and medicines are becoming increasingly blurred.
Technically, any potion that makes a physiological change to the skin – reducing wrinkles and uneven pigmentation, and reversing sun damage and other dermatological problems – should be classed as a medicine.
However, it is beyond dispute that today’s cosmetics can make significant changes to the skin. In the past decade, skincare companies have been falling over themselves to provide credible proof of how well their products work to persuade us to buy them.
And this is not just the ‘surveys-show-that-nine-out-of-ten-women-thought-their-skin-looked-better’ type of proof, but clinical trials, where the product has been properly tested against a placebo under controlled conditions.
No 7’s Protect And Perfect line famously began to sell out repeatedly in 2007 after clinical trials on the product, which showed that it genuinely reduced wrinkles, were judged to be scientifically sound.
Olay’s Regenerist 3-point Treatment Cream caused a stampede the following year after trials confirmed it made skin firmer within 21 days. Two years ago, Clinique conducted trials to demonstrate that its Even Better Clinical Dark Spot Corrector (a bit of a mouthful, but one heck of a product) produced comparable results in reducing skin pigmentation to hydroquinone, the standard prescription treatment for skin pigmentation.
And in the past few weeks, L’Oreal’s new Revitalift Laser Renew serum has been shown by a clinical trial to produce skin benefits comparable to treatment with a skin-resurfacing laser. You’d expect these new wonder-potions to cost a small fortune, but all the above are between £20 and £40.
Because technically these creams are doing more than they ought, it has led to a bizarre situation where companies don’t always want to let on just how extensive the effects of their products may be in case of calls for them to be recategorised as medicines.
It’s time the categories were redrawn, if you ask Dr Chris Flower, director general of the cosmetics trade body, the Cosmetic, Toiletry and Perfumery Association (CTPA).
‘We are now trying to work out the best legal way of saying “medicine takes ill people and makes them better and cosmetics take ordinary, healthy people and make them better”. Ageing isn’t a disease but we can do things to improve it.
‘Cosmetics used to be purely decorative. But now we understand that even a simple moisturiser changes the way cells express genes and enzymes, so it’s interacting with the skin – but no one would seriously think that Vaseline should be labelled a medicine. Rather than arguing over the interpretation of legislation, we should take a commonsense approach and look at whether a product is aimed at sick people or healthy people.’
In the interests of research (and, yes, of vanity) I make a point of trying interesting new skincare lines and using them diligently for a month – the length of time it takes for any beneficial changes in the skin to show up – just to see what they are like.
But then I was persuaded to try Karin Herzog, a Swiss range of handmade products that have trapped oxygen within the cream (much harder to do than it sounds).
The creams claim to infuse the skin with healing oxygen by a process that I didn’t quite understand so I’ll spare you the details.
What did make me prick up my ears was the quiet aside that these are the products that the Duchess of Cambridge has been using for years, and to which she is apparently devoted. If they’re good enough for her outstandingly beautiful skin . . .
The packaging is old-fashioned and they weren’t particularly nice to use – the roller-ball that dispensed the facial oil was reluctant to roll, the serum bottle had a savage squirt, and the peroxide in the main cream turned my eyebrows ginger.
As usual, I couldn’t see any difference in my skin but I’d taken the precaution of getting a professional before-and-after assessment with Nick Miedzianowski-Sinclair at the 3D Cosmetic Imaging Studio in Wimpole Street, Central London.
Nick’s specialist Visia camera took detailed photographs of my face, noting the exact extent of my wrinkles, pigment patches and so on, and after five weeks of using Karin Herzog there was a measurable reduction in wrinkles, age spots and red areas of the face. As Nick put it, ‘there’s some good evidence of efficacy’; genuine evidence that using this range will make your skin look younger.
I could have stuck with Herzog but I’ve been tempted away by Neo Strata, an ‘advanced anti-ageing regime’ from America – studies showed that after four weeks, 93 per cent of users saw improvements in wrinkles, skin texture and forehead lines.
Because the brand contains high levels of active ingredients such as ****glycolic acid*** SEE BELOW (which helps plump the skin), it is sold only through skin clinics, where the staff can keep an eye on how your skin is responding.
And more developments will arrive thick and fast. To find out what the future hold for our faces, I visited the Episkin Predictive Evaluation Centre centre on the outskirts of Lyon, where scientists have actually cloned human skin in order to test new face cream formulations.
Episkin is owned by L’Oreal, the world’s biggest cosmetics company, and this is where the ingredients, and later the formulations, that will comprise many of the world’s best-selling skincare products are put through their paces on the reconstructed human skin – bionic skin, if you like – that is made in the lab.
The building itself looks unremarkable. There is no perimeter fence or security guard at the entrance, just a metal gate set in a high white wall. Inside, technicians, gloved and covered from top to toe in blue-hooded suits are hunched over tiny pots containing small, wet, white, floppy discs. This is Episkin - living, human skin.
I get to handle some of it. As I prod it with my latex-gloved fingers, the scientists regard me with tolerant amusement.
‘It’s quite strong,’ I venture.
‘It’s a bit like blister skin,’ says Dr Estelle Tinois-Tessonneaud, director of the Centre and the woman who, as a PhD student 30 years ago, invented the process by which the skin is created. ‘It is white because it has no blood supply and this version has no pigment, either.’
As well as Episkin, which is used as the epidermis, or outside layer of the skin, the centre makes other skin models including ‘RealSkin’, which adds a dermis, the lower layer of skin, to the epidermis. Staff have even developed corneal (eye) and gum tissue.
Episkin has been authorised by the European Centre for the Validation of Alternative Methods to replace animal testing – something L’Oreal has been working towards, and investing £25 million a year in, for 20 years.
Of the 130,000 samples of tissue now made in Lyon, 30 per cent are sold to other cosmetics companies to use as alternatives to animal testing. (Such experiments have been banned in the EU since 2009, although some tests, for which alternatives have yet to be established, are still allowed.)
The rest of the tissue is used by L’Oreal for testing ingredients and the finished formulae for safety and effectiveness. Since 2008, some 13,000 formulae have been evaluated in this way.
And it’s not just L’Oreal that is producing such high-tech products, using the latest science.
At Boots, you can now find BioEffect, a serum containing a substance called epidermal growth factor (EGF). The scientists who discovered EGF won a Nobel prize for their work. Numerous peer reviewed trials have shown a measurable effect on the skin, reducing the number of wrinkles.
There’s nanotechnology (the science of using molecules measured in millionths of a metre) in sunscreens. These microscopic particles of the sun-blocking ingredient titanium dioxide make sure your face won’t be left ghostly white.
Stem cells, both plant and human, have been investigated for their regenerative power and put to work in serums. Genomics research, the study of the whole gene, has been used by skincare companies to work out which ingredients will ‘switch on’ genes within the skin that become less active with age – and the results are on sale in Olay’s bestselling Pro-X range and Lancome’s Genifique line.
Avon ladies will soon be selling a serum containing a new molecule called A-F33, which helps older skin regenerate itself as quickly as younger skin does. Again, there’s Nobel prize-winning research behind this molecule, and Avon has exclusive rights to it for two years.
Such detailed research is an expensive business, too; L’Oreal’s research and innovation budget for 2010, for example, was £525 million. But with the British skincare market set to top £1 billion this year, there is a vested interest in being at the vanguard.
Rather than taking the old-fashioned route of mixing up trial formulae and seeing what they might do for skin, L’Oreal’s scientists at the Episkin Centre are now doing this virtually, using computerised data from their previous experiments to evaluate new ingredient molecules and formulae for safety and for beneficial effects, before mixing up a batch.
Because the computer models can whizz through this process, it is fair to assume that the pace of change, and of new advances, is only going to accelerate in future. Watch this face…
***GLYCOLIC ACID DOES NOT PLUMP UP THE SKIN, IT'S AN ACID PEEL, THAT'S WHY STAFF HAVE TO KEEP AN EYE ON CLIENTS AS TOO MUCH USE WOULD CAUSE DAMAGE AND SCARRING BY THINING THE SKIN TOO MUCH (HONESTLY YOU WOULD THINK JOURNALISTS WOULD GET THEIR FACTS CORRECT)
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