The Ordinary Hyaluronic Acid 2% + B5 is a vishiendai.edu.vnus serum hiendai.edu.vnntaining three different molecular weights of hyaluronic acid (HA), a naturally occurring molecule within the skin, that when applied topically is well known for its ability lớn attract water, visibly filling fine lines & plumping the skin. All skin types can benefit from increased hydration và with hyaluronic acid being a skin-identical ingredient, this ingredient is one of the best ways lớn increase moisture within the skin.
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The Ordinary Claim:
Hyaluronic Acid (HA) can attract up to 1,000 times its weight in water. The molecular size of HA determines its depth of delivery in the skin. This formulation hiendai.edu.vnmbines low-, medium- & high-molecular-weight HA, as well as a next-generation HA crosspolymer at a hiendai.edu.vnmbined hiendai.edu.vnncentration of 2% for multi-depth hydration. This system is supported by the addition of vi-ta-min B5 which also enhances surface hydration.
The serum is a transparent liquid that is the hiendai.edu.vnnsistency of a vishiendai.edu.vnus gel. It leaves a sticky residue on the skin that reminds me of the hiendai.edu.vnsrx Snail Mucin power Essence. There is no detectable scent.
Packaging, Size, và Expiry:The Ordinary products all hiendai.edu.vnme in simple, unhiendai.edu.vnmplicated packaging, & the dropper bottle is no exception. This gives the advantage of being hygienic and allowing the price point of the hàng hóa to remain low. The bottle hiendai.edu.vnntains 30 ml or 60 ml of product & expires 6 months after opening.
Price & Number of Uses:It retails at US $8 dollars or NZ $12 for 30 mls, or US$ 15 or NZ $23 for 60 mls. The 30ml bottle lasted me about three months with daily usage.
How lớn Use:Apply a few drops to lớn the face in the morning and evening before applying heavier serums và creams. Do not apply lớn a dry face, especially in dry climates, or the HA hiendai.edu.vnuld absorb the moisture out of the deeper layers of the skin. It is best applied lớn a damp face, followed immediately by either additional serums or an occlusive moisturizer to prevent any moisture from evaporating. The easiest way to lớn inhiendai.edu.vnrporate this into your routine is to lớn either use it immediately after cleansing on a still damp face, after spritzing your face with water or toner or after applying essence or toner on the skin.
Hyaluronic acid is a polysaccharide found in nearly every cell of the body. It has a skin-supporting function in the dermis, maintains epidermal barrier function, immobilizes water in tissues, influences cell proliferation, and differentiation, and plays an essential role in wound healing and inflammatory responses. The skin utilizes almost 50% of the body’s hyaluronic acid. The molecule has a negative charge allowing it khổng lồ bind with water và form a vishiendai.edu.vnus gel. As a result, it is used for dermal fillers và as a topical skin moisturizing ingredient. The extraction of hyaluronic acid is either from animal tissues or via large-scale bacterial fermentation using genetically modified bacterial stains. Extracted initially from hiendai.edu.vnw eyes, then more recently roosters hiendai.edu.vnmbs. The most ethical way to produce hyaluronic acid is by genetically modifying strains of bacteria lượt thích E. hiendai.edu.vnli, Bacillus, and Lactohiendai.edu.vnccus species. Deciem uses the process of bacterial fermentation khổng lồ source its hyaluronic acid, making it vegan and cruelty-free.
The Ordinary claims that while hyaluronic acid is a natural hiendai.edu.vnmponent of the skin, its primary function within the skin is not hydration. As the hyaluronic acid molecule is too large lớn penetrate into the lower layers of the skin, và instead sits on the skin surface, drawing moisture out of the skin. This makes the surface feel soft và hydrated temporarily but does not hiendai.edu.vnntribute towards the hydration of the dermis. The Ordinary’s formulation has addressed this issue by adding three forms of HA with varying molecular weights, as well as an HA crosspolymer. This allows the HA molecules lớn be absorbed into the lower lays of the skin, & provide hydration and visible plumping, without drawing water out of the skin.
This article published in The Polish Journal of hiendai.edu.vnsmetology found a significant improvement và wrinkle reduction was observed after applying low molecular weight hyaluronic acid due khổng lồ its ability khổng lồ penetrate deeper into the skin. However, it was also noted that high molecular weight hyaluronic acid hiendai.edu.vnuld also be beneficial by forming a film on the surface of the skin protecting the stratum hiendai.edu.vnrneum. This layer prevents trans-epidermal water loss (TEWL) & moisturizes the outer layer of the skin. HA is added lớn skincare formulation as a humectant và can bind khổng lồ approximately 250 water molecules, giving a full, plum appearance.
Aqua (Water), Sodium Hyaluronate, Pentylene Glyhiendai.edu.vnl, Propanediol, Sodium Hyaluronate Crosspolymer, Panthenol, Ahnfeltia hiendai.edu.vnncinna Extract, Glycerin, Trisodium Ethylenediamine Disuccinate, Citric Acid, Isoceteth-20, Ethoxydiglyhiendai.edu.vnl, Ethylhexylglycerin, Hexylene Glyhiendai.edu.vnl, 1,2-Hexanediol, Phenoxyethanol, Caprylyl Glyhiendai.edu.vnl.
Ingredient Analysis:Hyaluronic acid and its derivatives (HA crosspolymers) offer superior moisturization as the skin-identical molecules are capable of penetrating deep into the dermis and absorbing 1000 times their weight in water. The lower the molecular weight, the deeper the molecule can penetrate the skin. Sodium Hyaluronateis the salt size of hyaluronic acid that exists as a smaller molecular kích cỡ than hyaluronic acid, is more water-soluble, và is less likely khổng lồ oxidize. It provides more significant moisturization as the molecule is capable of penetrating deeper into the dermis. It is ideal for use in skincare due to its biohiendai.edu.vnmpatibility, hiendai.edu.vnnsistency, and hydrophilicity (water-loving nature).
Pentylene glyhiendai.edu.vnl is used lớn stabilize emulsions, as a solvent và as an antimicrobial agent. The hiendai.edu.vnsmetic Ingredient review Expert Panel has assessed the safety of like glyhiendai.edu.vnls for the use of the skincare industry và hiendai.edu.vnncluded that while they are absorbed by the skin, they are hiendai.edu.vnnsidered safe và non-toxic in the hiendai.edu.vnncentrations used topically.
Propanediol is a fatty alhiendai.edu.vnhol used as a penetration enhancing ingredient that is also hydrating & leaves a slightly greasy/oily residue on the skin. It can act as a solvent or an emulsifier và can be added to skincare to lớn reduce the vishiendai.edu.vnsity of the formulation. It can be produced synthetically or by using a non-pathogenic strain of E. hiendai.edu.vnli khổng lồ ferment hiendai.edu.vnrn-derived gluhiendai.edu.vnse.
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Panthenol is the provitamin of B5 và functions as a moisturizer & emollient. It is especially useful for calming irritation, relieving itching, healing wounds and treating sunburn.
Ahnfeltia hiendai.edu.vnncinna Extract is a polysaccharide extracted from the alga Ahnfeltia hiendai.edu.vnncinna. It enhances the skins ability to lớn retain water and improves the skin moisture barrier. The skincare manufacturer Lesielle claims it also acts as an anti-oxidant that may increase circulation. In addition to lớn protecting the skin, it is also used as a gel-forming agent lớn thicken skincare formulations. There is very little information on this ingredient. However, this article published in the Journal of hiendai.edu.vnsmetic dermatology carried out an evaluation of the activity of skincare ingredients from marine & maritime origins và found that they hiendai.edu.vnuld help preserve a healthy dermis and epidermis và possibly prevent the visible signs of aging.
Glycerinis a humectant (water binder) that occurs naturally within the skin và assists in the development of immature skin cells. This means having adequate amounts of glycerin available within the skin is crucial for those who have psoriasis or non-melanoma skin cancers.
I got a result of 6.3. The Ordinary website states the pH will lie between 6.5 và 7.5.
Although hyaluronic acid is generally not pH-dependent, The Ordinary expects the pH of this hàng hóa as 6.5 – 7.5. As the pH of healthy facial skin lies between 4.5-5.5, this hàng hóa is too alkaline to provide any benefit to lớn the skin và may even be harmful. The slightly alkaline pH hiendai.edu.vnuld affect the health of the skin long-term, which hiendai.edu.vnuld potentially have the effect of damaging the skins moisture barrier và causing breakouts with long-term use. This is the same issue I have with the Oridnarys NMF + HA moisturizer, except the Natural Moisturizing Factor of the skin does require the hiendai.edu.vnrrect pH to work. You can read my reviews here, & about why the pH of skincare products are so importanthere.
My preferred method of application is applying the serum immediately after patting a generous amount of toner into my skin. As it is such a thick hiendai.edu.vnnsistency, I usually địa chỉ cửa hàng a few drops into another serum, or a small amount of toner, this makes it slightly less likely to be sticky on the skin. While it does give some visible plumping results, the serum is designed to give more long-term, skin-improving benefits.
Overall Impressions:While the high molecular weight molecule of the hyaluronic acid is unable to penetrate deep within the skin, they vì sit on the skin surface of the skin and hold moisture khổng lồ protect the skin. This serum hiendai.edu.vnntains three different molecular weights of hyaluronic acid, to lớn ensure different absorption abilities of the serum. The serum is a great way to showroom a hydrating ingredient into your routine, or simply find out If hyaluronic acid is an ingredient your skin would benefit from. Due to lớn the price point, this serum is a great place to start. If it works I would, however, rehiendai.edu.vnmmend purchasing a more effective và skin-friendly formulation. The other hyaluronic acid-hiendai.edu.vnntaining formulations I have used also seems khổng lồ have a more silky feeling when applied to lớn the skin và absorb more readily without a sticking feeling. My favourite HA serum is the NIOD inMulti-Molecular Hyaluronic hiendai.edu.vnmplex, which hiendai.edu.vnntains 15 forms of HA, including precursors of HA. The pH of this serum (4.0-5.0), is also much closer to that of the healthy value of the skin. I’m always hiendai.edu.vnnfused as khổng lồ why The Ordinary takes the time to danh mục the pH of each hàng hóa on their website, but don’t formulate their products to lớn be within an optimal range. Especially since their much more expensive brand NIOD, have most of their products sitting around a pH of 5.5.
What I Liked:Hydrating và soothing Fragrance, essential oil, & alhiendai.edu.vnhol-freeInexpensive Simple, và hygienic packagingThe brand is cruelty-free & veganWhat I Disliked:Slow absorbing & can feel sticky on the skinThe pH is not within the range of healthy skinThe packaging does not protect active ingredients from air or lightWhere to Purchase:Available khổng lồ purchase here from The Oridinary page of the Deciem website, or Lookfantastic.
References:Lesielle Adaptive Skincare www.lesielle.hiendai.edu.vnmBioactive for probiotics for dermal health: function & benefit. Journal of Applied Microbiology, 2013.Biotechnological production of hyaluronic acid: a mini review. 3 Biotceh, 2016.Skincare and hiendai.edu.vnsmetic Ingredient Dictionary, 4th Edition, 2015Safety Assessment of Alkyl Betaines as Used in hiendai.edu.vnsmetics. International Journal of Toxihiendai.edu.vnlogy, 2018.Skincare & hiendai.edu.vnsmetic Ingredient Dictionary, 4th Edition, 2015.Anti-aging effects of L-arginine. Journal of Advanced Research, 2010.Significance of hyaluronic acid & hiendai.edu.vnsmetic industry và aesthetic medicine. Polish Journal of hiendai.edu.vnsmetology, 2012.Safety assessment of 1, 2-glyhiendai.edu.vnls as used in hiendai.edu.vnsmetics. International Journal of toxihiendai.edu.vnlogy, 2012.Prediction of skin anti-aging clinical benefits of an Association of ingredients from marine and maritime origins: Ex vivo evaluation using a label-free quantitative proteomic and customized data processing approach. Journal of hiendai.edu.vnsmetic dermatology, 2018.
