Yinherb Lab Vitamin A Retinoids Raw Powder 99% Purity
Vitamin A palmitate: Retinol palmitate
Molecular Formula: C36H60O2
Molecular Weight:524.87
CAS No.: 79-81-2
EINECS: 201-228-5
Appearance: Pale yellow to yellow flowing powder;
Stability: Stable. Incompatible with heavy metal ions, strong oxidizing agents, strong reducing agents. Solutions may be light and heat sensitive.
Particle size: 90% through 60 mesh sieves
Purity (HPLC) >99.0%
Place of Origin: China Yinherb-Lab
Packing: As per client's requirements
Minimum Order Quantity: 1kg
Storage: Store in cool & dry place, Keep away from strong light and heat.
What is Vitamin A Retinoids?
Vitamin A is a group of unsaturated nutritional organic compounds that includes retinol, retinal, retinoic acid, and several provitamin A carotenoids (most notably beta-carotene). Vitamin A has multiple functions: it is important for growth and development, for the maintenance of the immune system and good vision.Vitamin A is needed by the retina of the eye in the form of retinal, which combines with protein opsin to form rhodopsin, the light-absorbing molecule necessary for both low-light (scotopic vision) and color vision.Vitamin A also functions in a very different role as retinoic acid (an irreversibly oxidized form of retinol), which is an important hormone-like for epithelial and other cells.
In foods of animal origin, the major form of vitamin A is an ester, primarily retinyl palmitate, which is converted to retinol (chemically an alcohol) in the small intestine. The retinol form functions as a storage form of the vitamin, and can be converted to and from its visually active aldehyde form, retinal.
All forms of vitamin A have a beta-ionone ring to which an isoprenoid chain is attached, called a retinyl group. Both structural features are essential for vitamin activity. The orange pigment of carrots (beta-carotene) can be represented as two connected retinyl groups, which are used in the body to contribute to vitamin A levels. Alpha-carotene and gamma-carotene also have a single retinyl group, which give them some vitamin activity. None of the other carotenes have vitamin activity. The carotenoid beta-cryptoxanthin possesses an ionone group and has vitamin activity in humans.
Vitamin A can be found in two principal forms in foods:
Retinol, the form of vitamin A absorbed when eating animal food sources, is a yellow, fat-soluble substance. Since the pure alcohol form is unstable, the vitamin is found in tissues in a form of retinyl ester. It is also commercially produced and administered as esters such as retinyl acetate or palmitate.
The carotenes alpha-carotene, beta-carotene, gamma-carotene; and the xanthophyll beta-cryptoxanthin (all of which contain beta-ionone rings), but no other carotenoids, function as provitamin A in herbivores and omnivore animals, which possess the enzyme beta-carotene 15,15'-dioxygenase which cleaves beta-carotene in the intestinal mucosa and converts it to retinol.
Vitamin A Retinoids Benefits
Vitamin A (Retinoids) Application
-Retinol can effectively prevent obesity, keep women slim figure.
-Retinol is used to promote bone growth, help teeth growth, regeneration.
-Retinol can adjust the skin and cuticle metabolic effect, can be anti-aging, and to wrinkles.
-Retinol can help protect skin, mucous membrane from bacteria violations, healthy skin, prevent skin cancer.
-Retinol also can prevent nyctalopia, eyesight decline, the treatment of various eye disease, make the woman good eyes.
-Retinol can reduce sebaceous overflow and make the skin elasticity, and at the same time, desalination spot, smooth skin.
Vitamin A (Retinoids) Function
1.Vitamin A acetate can effectively prevent obesity, keep women slim figure.
2.Vitamin A acetate is used to promote bone growth, help teeth growth, regeneration.
3.Vitamin A acetate can adjust the skin and cuticle metabolic effect, can be anti-aging, and to wrinkles.
4.Vitamin A can help protect skin, mucous membrane from bacteria violations, healthy skin, prevent skin cancer.
5.Vitamin A acetate also can prevent nyctalopia, eyesight decline, the treatment of various eye disease, make the woman good eyes.
6.Vitamin A acetate can reduce sebaceous overflow and make the skin elasticity, and at the same time, desalination spot, smooth skin.
Vitamin A Retinoids Mode of Action
Vitamin B1 thiamine A coenzyme in the catabolism of sugars and amino acids.
Vitamin B2 riboflavin A precursor of cofactors called FAD and FMN, which are needed for flavoprotein enzyme reactions, including activation of other vitamins.
Vitamin B3 niacin (nicotinic acid), nicotinamide riboside A precursor of coenzymes called NAD and NADP, which are needed in many metabolic processes
Vitamin B5 pantothenic acid A precursor of coenzyme A and therefore needed to metabolize many molecules.
Vitamin B6 pyridoxine, pyridoxal, pyridoxamine A coenzyme in many enzymatic reactions in metabolism.
Vitamin B7 biotin A coenzyme for carboxylase enzymes, needed for synthesis of fatty acids and in gluconeogenesis.
Vitamin B9 folate A precursor needed to make, repair, and methylate DNA; a cofactor in various reactions; especially important in aiding rapid cell division and growth, such as in infancy and pregnancy. Synthetic folate is known as folic acid.
Vitamin B12 various cobalamins; commonly cyanocobalamin or methylcobalamin in vitamin supplements A coenzyme involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid metabolism and amino acid metabolism.
Vitamin A Retinoids Dosage
Adequate Intake (AI) levels of vitamin A for infants have been established: birth to 6 months, 400 mcg/day (1300 units); 7 to 12 months, 500 mcg/day (1700 units).
Recommended Dietary Allowance (RDA) levels for children and adults have been established: children 1 to 3 years, 300 mcg/day (1000 units); 4 to 8 years, 400 mcg/day (1300 units); 9 to 13 years, 600 mcg/day (2000 units); men 14 years and older, 900 mcg/day (3000 units); women 14 years and older, 700 mcg/day (2300 units); pregnancy 14 to 18 years, 750 mcg/day (2500 units); 19 years and older, 770 mcg/day (2600 units); lactation 14 to 18 years, 1200 mcg/day (4000 units); 19 years and older, 1300 mcg/day (4300 units). Tolerable Upper Intake Levels (UL) for vitamin A have also been established. The UL is the highest level of intake that is likely to pose no risk of harmful effects. The ULs for vitamin A are for preformed vitamin A (retinol) and do not include provitamin A carotenoids: infants and children from birth to 3 years, 600 mcg/day (2000 units); children 4 to 8 years, 900 mcg/day (3000 units); 9 to 13 years, 1700 mcg/day (6000 units); 14 to 18 years (including pregnancy and lactation), 2800 mcg/day (9000 units); adults age 19 and older (including pregnancy and lactation), 3000 mcg/day (10,000 units).
Vitamin A dosage is most commonly expressed in units, but dosage in micrograms is sometimes used.
Eating 5 servings of fruits and vegetables per day provides about 50% to 65% of the adult RDA for vitamin A.
Vitamin A vs. Retinol vs. Vitamin C
Vitamin A is a term used to describe an entire group of retinoids, including retinol and carotenoids. Retinol is the active form of vitamin A that can be easily utilized by your body and is found in animal products. Carotenoids, on the other hand, are in many fruits and vegetables and must be converted to retinol once consumed.
Much like vitamin A, vitamin C is another important antioxidant that plays a central role in health. They share several of the same functions. Vitamin C boosts immunity, enhances skin health and fights free radicals, much like vitamin A. It's also found in some of the same sources, with fruits and vegetables such as kale, red peppers, strawberries and oranges containing an especially concentrated amount of vitamin C.
Vitamin A Retinoids HPLC &NMR Test report by Yinherb
| Name |
CAS No. |
Purity |
| Magnesium Taurate |
334824-43-0 |
98.0% |
| Galantamine Hydrobromide |
69353-21-5 |
98.0% |
| Tianeptine |
66981-73-5 |
99.0% |
| Tianeptine sodium |
30123-17-2 |
99.0% |
| Tianeptine hemisulfate monohydrate (THM) |
1224690-84-9 |
99.0% |
| 9-ME-BC(9-Methyl-9H-beta-carboline) |
2521/7/5 |
99.0% |
| Agomelatine |
138112-76-2 |
99.0% |
| 6-Paradol 98% |
27113-22-0 |
98% Oil form |
| 6-Paradol 50% |
27113-22-0 |
50% Powder form |
| Nicotinamide Riboside Chloride(NRC) |
23111-00-4 |
98.0% |
| Beta-Nicotinamide Mononucleotide(NMN) |
1094-61-7 |
98.0% |
| β-Nicotinamide Adenine Dinucleotide(NAD+) |
53-84-9 |
98.0% |
| Noopept,GVS-111 |
157115-85-0 |
99.0% |
| Piracetam |
7491-74-9 |
99.0% |
| Phenibut |
1078-21-3 |
99.0% |
| Coluracetam |
135463-81-9 |
99.0% |
| N-Methyl-D-aspartic acid(NMDA) |
6384-92-5 |
99.0% |
| Alpha GPC(Choline Alfoscerate) |
28319-77-9 |
99% Powder form |
| Alpha GPC(Choline Alfoscerate) |
28319-77-9 |
50% Graininess form |
| Citicoline |
987-78-0 |
99.0% |
| PRL-8-53 |
51352-87-5 |
98.0% |
| NSI-189 Phosphate |
1270138-41-4 |
99.0% |
| Phenylpiracetam hydrazide |
77472-71-0 |
99.0% |
| N-Acetyl-L-cysteine ethyl ester |
59587-09-6 |
98.0% |
| 1-(1-Adamantylcarbonyl) proline |
35084-48-1 |
98.0% |
| |
|
|
| TLB-150 |
1208070-53-4 |
99.0% |
| OTR-AC |
|
99.0% |
| 5a-hydroxy laxogenin |
56786-63-1 |
99.0% |
Q1: Can i get some samples
A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2: How to start orders or make payments
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, Western Union or Paypal or Escrow
Q3: How to confirm the Product Quality before placing orders
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q4:What's your MOQ
A:Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q5: How about delivery leadtime
A:Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)
Q6:Is there a discount
A:Different quantity has different discount.
Q7: How do you treat quality complaint
A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
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