12.03.2014
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Bio-Hydrating Cream, 15 PHA
Rating
1.4 fl. oz. for $49
Category:Skin Care > Moisturizers (Daytime and Nighttime) > Moisturizer without Sunscreen
Last Updated:12.03.2014
Jar Packaging:No
pH:3.20
Tested on animals:No
Review Overview
Bio-Hydrating Cream,15 PHA contains 15% PHA (using gluconolactone). Since this exfoliant works in a manner similar to glycolic acid, the same concerns about using concentrations above 10% apply. This is an OK option for intermittent use by those with normal to dry skin.
Claims
This professional strength, emollient cream is formulated with 15% PHA (gluconolactone) for individuals who are unable to use glycolic acid but desire the benefits of a high strength AHA cream. Gluconolactone, a polyhydroxy acid (PHA), offers all the benefits of AHAs yet is gentle to the skin and is appropriate even for sensitive skin.
Ingredients
Water, Gluconolactone, C12-15 Alkyl Benzoate, Propylene Glycol, Isododecane, PEG-40 Stearate, Sorbitan Monostearate, Isocetyl Alcohol, Stearyl Alcohol, Stearic Acid, Glyceryl Diisostearate, Cyclomethicone (Cyclopentasiloxane), TEA, Ethoxydiglycol, Dimethicone (Methylpolysiloxane), Butylene Glycol, Tocopheryl (Vitamin E) Acetate, Arginine, Disodium EDTA, Magnesium Aluminum Silicate, Xanthan Gum, Methylparaben, Chlorphenesin, Propylparaben
Brand Overview

NeoStrata At-A-Glance

Strengths: Huge assortment of AHA and PHA exfoliants; a couple good cleansers; some excellent moisturizers; several fragrance-free products.

Weaknesses: No BHA products (better for blemish-prone skin or for those who can't tolerate AHAs or PHA); use of jar packaging compromises some of the formulas; irritating ingredients make an appearance in several products.

Exfoliation is the name of the game for this line! The original NeoStrata and Exuviance brands were created by Drs. Eugene Van Scott and Ruey Yu, the two researchers who own the original patent (actually, they hold over 80 patents) for the use of glycolic acid (AHA) in relation to its ability to diminish wrinkles, among other capabilities. Few lines offer reliable and effective formulations for exfoliation, so those that do deserve your attention. Well-formulated AHA products are those that have an effective concentration of AHAs and a base with an acidic pH that allows them to have maximum benefit. The exfoliation that AHAs provide reduces the thickness of the skin's outer layer, helping skin to quickly look smoother and feel softer, which in turn can solve many skin problems, including dryness, blemishes, sun damage, and skin discolorations. A good deal of research also shows that AHAs can help increase the thickness of the underlying layers of skin, improve skin structure, increase collagen production, and allow penetration of other skin-care ingredients. Moreover, NeoStrata is one of the only companies to sell a range of reliable sunscreens that also contain effective AHA formulations.

Both the Exuviance (Exuviance products are reviewed separately), NeoCeuticals and NeoStrata lines contain glycolic acid (AHA), but even more of these products contain a polyhydroxy acid (PHA) called gluconolactone (also patented by Scott and Yu), and for which similar claims are made. Gluconolactone is supposed to be gentler and longer acting than glycolic acid, and its delayed penetration is attributed to its larger molecular size. However, according to an article in Cosmetic Dermatology (July 1998), the skin can't tell the difference between the various effective AHAs, and the possibility of gluconolactone staying on the surface of skin longer than other AHAs did not prove out. So in terms of exfoliation and potential side effects, PHA ends up being as good as AHA. Gluconolactone may be slightly less irritating for some skin types, but this isn't quite the magic bullet for exfoliation NeoStrata claims, though it does indeed work when properly formulated (but so do glycolic and lactic acids). Another PHA NeoStrata uses is lactobionic acid. However, there is no definitive, published research establishing it as an effective alternative to (or partner for) other AHAs or BHA.

Beyond the numerous products that exfoliate (which is NeoStrata's main selling point) there's not much to get excited about, especially for what the company is charging. And it's upsetting that a dermatologist-driven, physician-sold line still has weak spots such as the occasional inclusion of irritating ingredients with no established benefit for skin and, believe it or not, a sunscreen that leaves skin vulnerable to UVA damage. NeoStrata has their act together when it comes to AHAs and PHA, but that tunnel vision has, in some respects, kept them from branching out to offer a better assortment of state-of-the-art products.

For more information about NeoStrata, call (800) 225-9411 or visit www.neostrata.com.

Note: NeoStrata's range of products is advertised as being available only through physicians. However, the entire selection is available for purchase online. The Exuviance brand is sold in select department stores and specialty beauty boutiques such as Ulta.

Caution: Keep in mind that skin needs only one reliable exfoliant at a time. NeoStrata sells so many good ones, you may be tempted to double (or triple) up, but doing so can backfire and be more irritating than helpful.

About the Experts

The new Beautypedia Team proudly and unequivocally maintains the commitment to help you find the best products possible for your skin. We do this by relentlessly pursuing and relying on published scientific research so you will have unbiased information on what works and what doesn't-and the sneaky ways you could be making your skin worse, not better!


The Beautypedia Team reviews all products using the same research, criteria, and objectivity, whether the product being reviewed is from Paula's Choice or another brand.

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02.16.2013
Works with Prescription RetinA (Differin adapalene gel 0.3%)

Works with prescription RetinA significantly reducing drying/peeling problems. Enables my using RetinA on a regular regimen for 3+ years. Without the Bio-Hydrating Cream, RetinA caused so much peeling that I would discontinue for several days. Now using the Bio-Hydrating Cream and RetinA together my face gets a gentle exfoliation, a soft skin texture, and diminishing dark areas and lines. During low humidity days, Bio-Hydrating Cream keeps my skin supple, free from any drying or tightening.

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