Search Cosmetics & Toiletries: Page 4

156 Results

Type: Article

Quantifying Sunscreens and Preservatives in Cosmetic Products

The authors propose and validate an HPLC method for simultaneous quantitation of commonly used commercial sunscreen actives and preservatives in cosmetic emulsions.

White-sunglasses-850

Patent Pick: High-SPF, Low-filter Sunscreen

Patent Picks are chosen by the editors from publicly available sources. Today's highlight, from Unilever, is a sunscreen composition that provides high protection with low levels of UV filters.

This article considers options to provide effective UV protection that checks all the boxes, including modern sunscreens restricted by regulations, ingredient mandates and texture preferences.

Formulating Forum: The Challenge of Trending Sunscreens

This article considers options to provide effective UV protection that checks all the boxes, including modern sunscreens restricted by regulations, ingredient mandates and texture preferences.

WellerWomaninSunBathing850x425

Sunscreen Extreme: Are We Filtering Too Much?

Research has confirmed, and consumers now know, that sunlight is a skin carcinogen. But is it all bad? Sunscreens block photochemical reactions in skin that provide important health benefits. As such, balance is needed. Click through to read more in our April digital edition.

A Sunscreen Formulation for Acne-prone Skin

This article describes the study of a topical sunscreen formulation that contains titanium dioxide and ethylhexyl methoxycinnamate for UV protection, and phosphatidylcholine and hydrosoluble azelaic acid for acne control.

WomanApplyingSunscreen_850x850

Effective Sunscreens for Everyone Under the Sun

Today, we take the effectiveness of sunscreen products for granted. As the industry knows, this performance is not simply a happy coincidence. Here, we review the steps in the sun care R&D process and consider where questions may arise.

schmidt425

Preserve and Protect: Shielding the Sunscreen Umbrella

The sunscreen market is trending toward higher SPF levels, but these formulas tend to be more difficult to preserve. This study shows how high-SPF sunscreens can be adequately preserved using nontraditional approaches combining antimicrobials and multifunctional additives with boosting aids.

Formulating Water-resistant Sunscreen Emulsions

Note that today we aren't permitted to use the term "waterproof" since the FDA believes that this term implies an absolute-it never washes off-and feels that consumers might be inclined not to reapply sunscreen after swimming or perspiring. So, we must now use the term "very water resistant" in its place.

CT2004_Industry_Insight_fcx_2_850x425

Industry Insight: Sunscreen Myths, Claims and Consumer Confidence

Sunscreens have improved immensely in the past 40 years thanks to advances in formulation and a deeper understanding of sunlight and exposure. As a natural extension of progress, however, new pain points have emerged; these are discussed in brief in this commentary from world-renowned sunscreen expert Brian Diffey, Ph.D., of Newcastle University.

From Self Tanners to Sunscreens as Skin Protectants

Activities of hydroxyproline: Kobayashi et al. review the manufacture and physiological activities of hydroxyproline.

Adapting Spf Testing Methods For Mineral Sunscreen Density

Adapting SPF Testing Methods for Mineral Sunscreen Density

A sunscreen layer’s thickness is critical to its SPF. However, current regulations specify a mass application rate for testing, rather than a volumetric application rate. This significantly underrates the SPF values of mineral sunscreens due to their higher densities since, compared with their relative organic counterparts, thinner films are being tested, as will be shown here.

CoralReefMixedSpeciesColorfulArray_850x425

Stirring Debate: Methylene Blue for Reef-safe Sunscreens?

Methylene blue was previously covered for its potential as an alternative "reef safe" sunscreen. This stirred some debate among readers, as the following excerpts from their comments reveal. See what you think.

Technically Speaking--A Cinnamate Sunscreen and Other Topics

Sakai et al. discuss the design of an emulsion film for highly moisturizing and occlusive functions.

dupont_lead_850x425

Increase Performance of Sunscreen Actives with Zemea® Propanediol

Improve your sun care formulations without compromising performance or aesthetics with Zemea® Propanediol. It is non-irritating, provides increased moisturization and excellent sensory characteristics eliminating stickiness and greasiness.

The Quest for Avobenzone Stabilizers and Sunscreen Photostability

Butyl methoxydibenzoyl methane (BMDBM) is well-known as an effective UVA filter when it is stabilized. Here, the authors measure the efficiency of ten commercially available products that are reported to stabilize BMDBM. The most effective product found was octocrylene that, being a UVB filter, also contributed to the SPF.

Adapting SPF Testing Methods for Mineral Sunscreen Density

A sunscreen layer’s thickness is critical to its SPF. However, current regulations specify a mass application rate for testing, rather than a volumetric application rate. This significantly underrates the SPF values of mineral sunscreens due to their higher densities since, compared with their relative organic counterparts, thinner films are being tested, as will be shown here.

CT2010_Hewitt_850x425_PR_logo

Feel and Function: Attuning Attributes in Mineral Sunscreens

Formulators are increasingly being tasked with creating new sun care formulations based on TiO2 and/or ZnO. This paper will review and update current knowledge on how best to use inorganic sunscreens to develop effective and elegant sunscreen products.

Using Zinc Oxide in Sunscreen Products

While zinc oxide had been used for decades in sunscreen products — remember the white coating on lifeguards’ noses? — it was only approved for this use by the FDA approximately 10 years ago. Prior to that, it was actually considered to be (and still is) an approved skin protectant material.

Page 4 of 9