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Testing SPF 15–100, Indoor vs. Outdoor

Lab tests on sunscreens show it takes more energy to produce mild erythema on protected skin than unprotected skin. Yet the FDA questions the need for SPFs higher than 50. In response, two outdoor studies were conducted using commercial products to challenge standing premises and determine if there is a measurable difference in an SPF 100 and SPFs of 50 or less.

Testing SPF 15–100, Indoor vs. Outdoor

Lab tests on sunscreens show it takes more energy to produce mild erythema on protected skin than unprotected skin. Yet the FDA questions the need for SPFs higher than 50. In response, two outdoor studies were conducted using commercial products to challenge standing premises and determine if there is a measurable difference in an SPF 100 and SPFs of 50 or less.

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Comparatively Speaking: A Commentary on 'Cleaning'

The recent "Comparatively Speaking" column on cleaning, sanitizing, disinfecting and sterilizing was well-received and generated a good amount of interest. One appropriate addition, described here, suggests that "cleaning" is more complicated than removing organic matter.

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Transform and Amplify your Scents with Indole

We invite you to experience our Natural Indole listing and request a free sample. A Sigma-Aldrich® aroma chemical that's Certified Food Grade, Natural, Kosher, follows IFRA guidelines and meets purity specifications of JECFA.

Compass: The Shape of Words to Come

This issue of Cosmetics & Toiletries magazine focuses on treatments incorporating such actives in preventive skin care, antiaging treatments, and anticellulite and spa treatments.

Asia-Pacific Update: Indonesia Cosmetics

Indonesia is home to approximately 700 cosmetic companies in its 19 provinces. In 2007, total cosmetic production reached 372 tons, with an average 12.5% increase of production from 2003 to 2007.

Comparatively Speaking: Solubility in Surfactants vs. Compounds

Anthony J. O'Lenick provides a brief overview of solubility as the key to surfactant activity and compares it with compounds such as sodium chloride, for the benefit of novice formulators.

Comparatively Speaking: Amphilic vs. Non-amphilic Compounds

The term amphilic refers to a compound that possesses at least two groups that, if present in pure form, are insoluble in one another. The groups that are most commonly encountered are oil and water.

Anionic Organosilicones: Complexing Agents for Quaternary Compounds

A new formulating technique allows for the preparation of clear gels containing both anionic rheology control polymers and cationic conditioning agents, ingredients which were traditionally thought to be incompatible with one another.

Indonesia Expects Professional Hair Care Boom

Although the Indonesian hair care market is still modest in size, being less than 5% of the U.S. market, it has enjoyed a growth of almost 10% since 2007.

Comfortable Cosmetics

This issue of Cosmetics & Toiletries magazine is all about making skin comfortable and improving skin feel. With respect to making sunburned skin more comfortable, the issue features an article by KM Hanson et al. on the antioxidants vitamin E and diethylhexylsyringlidene malonate in sunscreens for the prevention of UV-induced ROS.

Comparatively Speaking: Process Claim vs. Compound Claim vs. Product-by-Process Claim

Industry expert Tony O'Lenick explains the difference between a process claim, a compound claim and a product-by-process claim in reference to patents.

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Comparatively Speaking: Complexation vs. Coacervation in 2-in-1 Shampoos

Hair care traditionally involves cleansing with anionic or amphoteric surfactants, rinsing, then using a conditioner with cationic surfactant and cetyl and stearyl alcohol. Combining these as 2-in-1 products is not easy but complexation and coacervation approaches can achieve such.

Compass: Natural Assault

Do the terms all natural and preservatives go together? Yes, in the sense that natural chemical defense mechanisms of the plant kingdom are used against antimicrobial intruders to preserve products.

Compass: Seeing Green

Consumers see green as natural and organic products that omit ingredients viewed as being toxic, and that somehow give back to, or are friendly to, the Earth during their manufacture. There’s a lot of room for interpretation in this description, so how can a cosmetic formula be developed to meet a green definition.

Compass: New Tricks

In the spirit of reformulating, this issue features five suggestions for improvement in major categories of personal care—from hair dyeing and strengthening, to delivering actives, formula stability and preservation.

Compass—Taking Action

There sure is a lot of activity around actives—from regulatory scrutiny over functional product claims, to ingredient research, development, optimization and efficacy testing.

Compass—Collective Interests

This edition examines oral care formulas to address erosion and sensitivity with an article by Faller. Also, Rigano discusses the components of toothpaste and their functions. New findings in naturals and sun care are also always of interest, and in this issue, Tooley et al. describe a water-based titanium dioxide dispersion for natural UV protection. Finally, Becker et al. present a time-saving method to pre-evaluate filler pigments for soft focus effects.

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