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Search Results - Retinol

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Retinol, the animal form of vitamin A, is a fat-soluble vitamin important in vision and bone growth. It is also a diterpenoid. Retinol is among the most usable forms of vitamin A, which also include Retinal (aldehyde form), Retinoic acid (acid form) and retinyl ester (ester form). These chemical compounds are collectively known as Retinoids, and all possess the biological activity of all-trans retinol as a common feature in their structure. Structurally, retinoids possess a ß-ionone ring and a polyunsaturated side chain, with either an alcohol, aldehyde, a carboxylic acid group or an ester group. The side chain is composed of four isoprenoid units, with a series of conjugated double bonds which may exist in trans or cis configuration.[1]

Retinol is produced from the hydrolysis of retinyl esters and retinal. Commercial production typically requires retinal synthesis through reduction of a pentadiene derivative and subsequent acidification/hydrolysis of the resulting isomer to produce retinol. When prepared as a dietary supplement, retinol is stabilized as retinyl acetate or palmirate.[2]

Retinol is ingested in a precursor form; animal sources (liver and eggs) contain retinyl esters, whereas plants (carrots, spinach) contain pro-vitamin A carotenoids. Hydrolysis of retinyl esters results in retinol, while pro-vitamin A carotenoids can be cleaved to produce retinal. Retinal, also known as retinaldehyde, can be reversibly reduced to produce retinol or it can be irreversibly oxidized to produce retinoic acid. The best described active retinoid metabolites are 11-cis-retinal and the all-trans and 9-cis-isomers of retinoic acid.

In 1913, Elmer McCollum, a biochemist at the University of Wisconsin–Madison, and colleague Marguerite Davis identified a fat-soluble nutrient in butterfat and cod liver oil. Their work confirmed that of Thomas Osborne and Lafayette Mendel, at Yale, which suggested a fat-soluble nutrient in butterfat, also in 1913.[3] Vitamin A was first synthesized in 1947 by two Dutch chemists, David Adriaan van Dorp and Jozef Ferdinand Arens.

Showing 1 to 25 of 48 Articles matching 'Retinol' in related articles.
Pages: 1 | 2 | Next >>

1. Good Tips on Reducing Wrinkles
November 10, 2009

Beauty is a characteristic of a person. It is often said, that "beauty is more than skin deep". A beautiful face is devoid of wrinkles. A wrinkle is a fold or crease in the skin which is caused by but is not limited to aging, constant facial expressions due to habit, exposure to sunlight, smoking and poor water intake. A lot of measures can be taken to reduce wrinkles such as drinking plenty of water. This helps to hydrate the skin and flush out toxins which are harmful to the body especially the skin leaving it clear. The diet is also important in preventing and reducing wrinkles. Plent... (read more)

Author: Eduardo Lopez

2. How to Get Rid of Age Spots
October 22, 2009

As we age, many of us tend to become plagued with age spots. Also called liver spot, these unattractive, flat brown spots can appear on our face, hands and other body parts that have frequently been overexposed to the sun. While age spots are harmless pigment changes, they are ugly and can make us look older than we are. The good news is that it is possible to get rid of age spots, or at least considerably fade them. Retinoids A topical retinoid such as Retin-a, a form of vitamin A available by prescription only, has been shown to be highly effective in getting rid of age spots. Retinoi... (read more)

Author: Valerie Goettsch

3. Vitamins- must to be included in diet plan
September 30, 2009

Vitamin is an organic compound required in tiny amount by every living organism. These compounds are not synthesized by the body, but instead need to be obtained from the diet. These compounds are classified by their biological and chemical activity. Vitamins, their biological names and function Vitamin A- ‘Retinol’. It is found in form of retinol and other retinoid. It is a fat soluble vitamin, considered important component for vision and bone growth. It also helps in gene transcription, skin health, immune function, embryonic development, antioxidant activities and haematopoiesis. Vita... (read more)

Author: jessica thomson

4. Six Simple Acne Nutrition Tips
September 24, 2009

Acne Nutrition tips - Studies show that diet does not play a role in either the cause or the treatment of acne. However, what is recommended for acne preventative care is this: what is best for your body is best for your skin, especially since your skin is the largest organ of your body. So here are healthy vitamins, minerals and other supplements that have been known and recommended to prevent and help conquer acne breakouts: Acne Nutrition 1: Vitamin A or Retinol is found not only in some cosmetic creams but also in liver, fish oils and dairy products. Produced by plants, this vit... (read more)

Author: kramesh sagaciti

5. Retinol A reduces fine lines and wrinkles
September 21, 2009

What should you look for in a products that can help to fight fine lines and wrinkles. I would recommend you to search for creams which contains Retinol A. Retinol A is one of the ingredients that most eye cream in the market uses. Retinol A is used for reducing fine lines and wrinkles and is found in most skin care products. It is a natural ingredients and the most effective ingredients found in most wrinkle creams products carried by most brands. Many users are not aware of the important compound which has the ability to effectively reduce fine lines and wrinkles. The Retinol A i... (read more)

Author: Laura Lin

6. Making it easy to choose the best anti-aging skin care products
September 01, 2009

In the cosmetics industry there are many anti-aging skin care creams to choose from to fight wrinkles and signs of old age. In the search for the best product you should choose one that has peptides, collagen, retinol and antioxidants. These are the basic active ingredient marketed under different names. That is the reason that multi-million corporations and label designers overshadow other small players by buying every inch of advertisement space. Let me explain why many people have resulted to search online for the best anti aging products despite the glare of models in the glossy magazines ... (read more)

Author: Joana Jones

7. Roc Retinol Correxion - Review
August 31, 2009

Roc Retinol Correxion ReviewOverviewFounded in France galf a century ago, ROC Retinol has really only hit the major US market in the past 10 years. Known as the companies premier product, ROC Retinol Correxion is designed with all the anti-aging and wrinkle fighting properties.Retinol is an ingredient that's known to some as Vitamin A. The main purpose of this ingredient is believed to be the way that it is meant to take away the top layer of what is thought to be dead skin in order to reveal the new layer that's beneath and promoting the healing process, thus stimulating new skin cell exp... (read more)

Author: Rachel Howard

8. Anti-Aging products - Roc Retinol Correxion Review
August 21, 2009

Roc Retinol Correxion ReviewOverviewRoc Retinal was was founded in France over 50 years ago yet only in the last decade has its influence been felt in the US. The flasgship product, Roc Retinol Correxion is known as an anti-wrinkle cream with anti-aging properties.Retinol is an ingredient that's known to some as Vitamin A. The main purpose of this ingredient is believed to be the way that it is meant to take away the top layer of what is thought to be dead skin in order to reveal the new layer that's beneath and promoting the healing process, thus stimulating new skin cell expansion that m... (read more)

Author: Sarah Catronas

9. The Untold Truth about a Prescription Wrinkle Cream
August 12, 2009

If you live in the US, there is only one FDA approved prescription wrinkle cream. There are many different brand names for it, including Retin-A. The generic name is tretinoin. It is actually a synthetic form of the antioxidant retinol or vitamin A. The side effects of tretinoin include: 1. Increased sensitivity to sunlight 2. Itching 3. Burning 4. Redness 5. Rashes 6. Flaking It should not be used by women that are pregnant or could become pregnant, because it could cause birth defects. Retinol in large quantities is toxic. It can actually cause de... (read more)

Author: Laurel Levine

10. Retinol Anti-aging Products That Benefit Your Skin
August 05, 2009

The heat of the summer is finally here to remind us of a warming climate and the need to take care of our skin on a daily basis. More and more people are choosing to benefit from the evolving repertoire of anti-aging products available. There are a number of different things you can do that are important to the condition of your skin: applying a broad spectrum of UVA and UVB blocking sunscreen every day, use antioxidants rich with Vitamin C to fight off the free radical damage of exposure and pollution, and exfoliate on a regular basis to remove the dead skin and stimulate the new layer. All o... (read more)

Author: Stephen Luke

11. Vitamin A- Skin Care or Careless?
July 24, 2009

Among the more effective anti-aging skin care products, we find Tretinoin, Retinol, and Retinyl Palmitate. These are all forms of vitamin A or derivatives thereof. The most significant of them is Tretinoin (retinoic acid). It is found in vegetables such as carrots and spinach. Tretinoin is used extensively in the treatment of acne and increasingly used in anti-aging regimens. Vitamin A is readily absorbed by the skin and stimulates production of new skin cells and as a result increases collagen production. Collagen being responsible for the fuller, firmer, and younger looking skin. Being ... (read more)

Author: James Mizzell

12. Wrinkle Cream Ingredients
July 21, 2009

These are some of the most popular skin care ingredients on the market today: Retinol: It is proven to neutralize free radicals as an antioxidant and proven to increase the efficiency of skin cell turnover. It also stimulates collagen re-growth. Retinoic acid has been known to cause irritation in some individuals with more sensitive skin. Retinyl palmitate, another derivative of vitamin A, is proven to be less irritating than other retinoic acids but is also known to be less effective. Argireline: (or Acetyl Hexapeptide-3)is a peptide (or chain of amino acids)commonly used in high en... (read more)

Author: David Mitchell

13. Skin Care Products - How Much Is Too Much?
July 21, 2009

The cosmetics industry is flooded with a range of skin care products that cater to an even broader range of skin concerns. There are eye creams, Vitamin C products, anti aging products with specialized ingredients like retinol, wrinkle lift formulations, skin lightening creams, firming lotions and so on. The list is just endless. And as women are growing more conscious about the way they look as we grow even older than before, the demand for these products is increasing like never before. In the quest to achieve a flawless and beautiful complexion, women end up using a every product they can l... (read more)

Author: Marilynn Syrett

14. Matrixyl & Matrixyl 3000
July 21, 2009

Matrixyl 3000 Skin care with Matrixyl 3000 In young skin, collagen fibers are bound together by elastin in a well-ordered network. Wrinkle free skin care in fact, it works given that well while retinol conversely you do not have the skin irritations retinol causes far too time after time. In the at first split-face ( double-blindtrial, there were 49 women who applied the Matrixyl cream or a worthless pill twice daily. It is the body's way of walling off a dangerous agent and the injured tissue. Matrixyl, which is too known since Palmitoyl pentapeptide-4 or Palmitoyl pentapeptide-3, is a pep... (read more)

Author: Willie Patel

15. Diet Tips For Acne
July 09, 2009

A lot of acne or severe acne may make your skin look really bad. People try to make a lot of efforts by visiting a dermatologist, applying topical creams and eating pills. However, it gets very disappointing when results are not so obvious. Experts in the field of skin treatment firmly believe that alteration in one's diet can actually improve skin structure and treat acne. Switching over to a healthy diet can even prevent acne from occurring. Vitamin A: You can get naturally occurring Vitamin A which is retinol, in fish oils, dairy products and liver. The plant form of Vitamin ... (read more)

Author: Michael William

16. Increase ejaculation & how to Improve Sperm Quality and Semen Volume
June 29, 2009

It's been well investigated that for a man to be fertile there must be a generous supply of anti-oxidants in the body in the genital tract especially. Men with problems of low sperm counts and low semen volume clearly lack in three essential anti-oxidants specifically : Lycopene, Retinol and Beta-Carotene.Beta Carotenes are the precursors of Vitamin A. If the body is deficient in Beta carotene the liver converts the current Beta carotene into Vitamin An and the anti-oxidant activity is lost during the conversion. It is therefore better to get more Lycopene. Lycopene is the agent that gives tom... (read more)

Author: jack A

17. Get Help for Sagging Skin Now!
June 25, 2009

If you need help for sagging skin, don’t worry, help is on the way! Three has been a lot of research going on lately concerning the beneficial effect of nourishing natural creams, rather than expensive cosmetic procedures that don’t last and don’t really look that great. Here’s a look at what the research has shown. Everything really started with Retin-A, a topically applied prescription ointment that was originally approved for use as a treatment for acne. Retin-A is actually a synthetic form of retinol, the animal form of vitamin A. The beneficial anti-aging effects that hav... (read more)

Author: Laurel Levine

18. Retinol A...High Potency
June 25, 2009

Anti-Wrinkle Retinol Wrinkle creams, or anti-wrinkle creams have become very popular, and are the most suitable choice for most of those who choose to use them They are common, sometimes inexpensive ( but not always ) and easy to apply. Wrinkle creams are one of the paths to fight aging. There are some creams that will only conceal the indications of aging, but there are those that are truly useful in diminishing them. Wrinkle creams are helpful only if they are properly chosen. Correct research and good information about the wrinkle creams should be sought.Wrinkle Creams Not NewWrinkle creams... (read more)

Author: Tommie Cox

19. Anti Aging Skin Care With Retinol
April 20, 2009

As we grow old, our skin begins to age and develops wrinkles and fine lines. There is a plethora of anti aging skin care products available in the market that help to relieve these signs of aging and help the skin regain its lost vitality. These anti aging skin care products are packed with powerful ingredients that specifically aim to correct the aging signs and enhance the skin quality. One such amazing ingredient is Retinol. What is Retinol? Retinol is an active form of Vitamin A. It is a topical compound that is used to treat acne and signs of skin aging like wrinkles,... (read more)

Author: Marilynn Syrett

20. Discover the Best Eye Cream For Dry Scaly Skin
April 14, 2009

You might disagree, but hear me out on this. Even the best eye cream for dry scaly skin may not be that helpful, if you cannot identify what is causing this problem. Everyone can benefit from eye cream for dry skin, if it contains the right ingredient, but excessive dryness and scaling around the eyes is unusual. You may have a nutrient deficiency. Either vitamin A or vitamin D deficiency can cause excessive dryness and scaling. You don't want to get too much of retinol, the animal form of vitamin A, but you cannot get too much beta-carotene. It's found in carrots and a variety of other v... (read more)

Author: Laurel Levine

21. Discover a Natural Wrinkle Reducer That's Healthy and Works!
March 13, 2009

Are you looking for a natural wrinkle reducer that's effective? Do you want the best wrinkle filler that will not only add nutrients to your skin but also reduce fine lines and wrinkles? If you're like me, I've tried all the products that claim to work. You know the ones I'm talking about. Products containing ingredients such as retinol, alpha hydroxy acid and even collagen never worked. I noticed very little, if any change and here's the reason why. Studies have shown that the collagen molecules are much too large to penetrate into the skin. So all those lotions and creams just sit ... (read more)

Author: Marcia Kruger

22. How You Can Have Soft & Beautiful Skin
December 15, 2008

Did you know that for long-lasting soft & beautiful skin, there are a number of important ingredients? There are others that should be avoided. Everyone wants beautiful natural skin, but most people don't know how to get it and the cosmetic companies don't help matters. We have been told to look for creams containing collagen or the animal form of vitamin A, known as retinol. In some products, the synthetic version of the vitamin is used. The safety and health benefits of synthetic vitamins are questionable. Excessive amounts of the animal form of vitamin A are toxic. The forms foun... (read more)

Author: Laurel Levine

23. Review of Anti-Aging Skin Care Products
December 03, 2008

When it comes to anti-aging skincare, choosing the appropriate products for your skin is half the battle. Hydrating and protecting your skin goes a long way in preserving the appearance and condition of your skin. Here we look at four anti-aging skincare products that deliver on their promises. Strivectin Strivectin is a company that sells a variety of anti-aging skincare products that contribute to a radiant and youthful appearance. Strivectin has been touted as anti-aging skincare that performs its results at a swifter rate than retinol, and offers better results than vitamin C. ... (read more)

Author: Farid Mostamand

24. Daily Vitamins
November 03, 2008

Healthy fast foods must have the appropriate vitamins as well as each appropriate amount of those vitamins in their foods before they can be considered to be 'healthy' fast foods. Vitamin A is a must in ones diet. It is measured in international units of 0.344 micrograms, equal to about one-third of a retinol equivalent. Standard pharmaceutical reference works estimate that taking 50,000 international units of retinol a day for longer than 18 months or 500,000 international units a day for two months constitutes a chronic toxic dose. Vitamin C another vitamin that the human body canno... (read more)

Author: Anthony Benjamin

25. Nature's Recipe for Turning Back the Clock
September 30, 2008

Women everywhere are now more aware of the anti-ageing process than ever before and as a result the anti-ageing skincare market has rocketed over the past decade. It is now reported to be worth over billions in the UK alone, and scientific ingredients such as pentipeptides and retinol are part of most female’s vocabulary these days. However, whilst scientists toil in their laboratories to discover and create new weird and wonderful anti-ageing ingredients, Mother Nature has some of her own ingredients that are useful and can be found right before your eyes. Most women love roses, es... (read more)

Author: Isla Campbell

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