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For the New York City band, see Lotion (band). For the song, see The Greenskeepers. For the band Bodylotion, see Neophyte (band).
Lotion and shampoo at The Banff Centre
Ginseng hand cream from North Korea

A lotion is a low- to medium-viscosity topical preparation intended for application to unbroken skin.[1] By contrast, creams and gels have higher viscosity.

Lotions are applied to external skin with bare hands, a brush, a clean cloth, cotton wool, or gauze. Many lotions, especially hand lotions and body lotions are formulated not as a medicine delivery system, but simply to smooth, re-hydrate, and soften the skin. These are particularly popular with the aging and aged demographic groups, and in the case of face usage, can also be classified as a cosmetic in many cases, and may contain fragrances.

Most lotions are oil-in-water emulsions using a substance such as cetearyl alcohol to keep the emulsion together, but water-in-oil lotions are also formulated. The key components of a skin care lotion, cream or gel emulsion (that is mixtures of oil and water) are the aqueous and oily phases, an emulgent to prevent separation of these two phases, and, if used, the drug substance or substances. A wide variety of other ingredients such as fragrances, glycerol, petroleum jelly, dyes, preservatives, proteins and stabilizing agents are commonly added to lotions. Lotions can be used for the delivery to the skin of medications such as:

It is not unusual for the same drug ingredient to be formulated into a lotion, cream and ointment. Creams are the most convenient of the three but are inappropriate for application to regions of hairy skin such as the scalp, while a lotion is less viscous and may be readily applied to these areas (many medicated shampoos are in fact lotions). Historically, lotions also had an advantage in that they may be spread thinly compared to a cream or ointment and may economically cover a large area of skin, but product research has steadily eroded this distinction. Non-comedogenic lotions are recommended for use on acne prone skin.

Manufacturing process[edit]

Since thickness and consistency are key factors in lotions and creams, it is important to understand the manufacturing process that determines viscosity.

Manufacturing lotions and creams can be completed in two cycles: 1. Emollients and lubricants are dispersed in oil with blending and thickening agents. 2. Perfume, color and preservatives are dispersed in the water cycle. Active ingredients are broken up in both cycles depending on the raw materials involved and the desired properties of the lotion or cream.

A typical oil-in-water manufacturing process might go like this:

• Step 1: Add flake/powder ingredients to the oil being used to prepare the oil phase.

• Step 2: Disperse active ingredients.

• Step 3: Prepare the water phase containing emulsifiers and stabilizers.

• Step 4: Mix the oil and water to form an emulsion. (Note: This is aided by heating to between 110-185 F (45-85 C) depending on the formulation and viscosity desired.)

• Step 5: Continue mixing until the end product is uniform.

Careful note should be taken in choosing the right mixing equipment for lotion manufacturing to avoid agglomerates and long processing times. It can make all the difference in manufacturing time and costs. Conventional agitators can present a number of problems including agglomerates and longer processing times. On the other hand, high shear in-line mixers can produce quality lotions and creams without many of the complications encountered with conventional mixers. Sonolation is also a process that is growing in popularity.

See also[edit]

References[edit]

  1. ^ Remington, Joseph Price (2006), Beringer, Paul, ed., Remington: The Science And Practice Of Pharmacy (21st ed.), Lippincott Williams & Wilkins, p. 772, ISBN 0781746736. 

External links[edit]


Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Lotion — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.

21761 news items

 
Boston.com
Tue, 26 Aug 2014 12:47:58 -0700

Our European team was already aware of the mistake regarding labeling on Dove Summer Glow Body Lotion bottles. This was corrected during the summer of 2012. Many of our lotions focus on moisture as the key benefit and in some cases we label them ...

New York Daily News

New York Daily News
Mon, 18 Aug 2014 10:45:28 -0700

An online video using an ultraviolet camera shows beauty isn't necessarily skin deep — especially when they're not seen in a good light. Brooklyn filmmaker Thomas Leveritt shows the vulnerability of people's faces to the sun by filming them with an ...
 
Huffington Post Canada
Thu, 28 Aug 2014 11:45:33 -0700

On Tuesday, a woman posted a Twitter photo of Dove's Summer Glow Nourishing Lotion, that featured the classification "Normal to dark skin," implying that light skin tones are "normal" and dark skin isn't. Ugh. Twitter user @hatfulofalex rightfully ...
 
Packaging Digest
Mon, 18 Aug 2014 11:56:15 -0700

That's addressed in this invention from Kimberly-Clark Worldwide Inc., Neenah, WI, that proposes using a novel dispensing bottle that delivers an oxygen-rich lotion at the point of use. One embodiment is for a single-reservoir dispensing bottle that ...
 
io9
Thu, 07 Aug 2014 13:41:33 -0700

Have you ever wondered how fake tan lotion manages to turn people's skin brown without subjecting them to UV radiation exposure? Actually, it's a chemical reaction that you observe all the time...whenever someone is cooking meat. Writing over at his ...

ROCKETNEWS24

ROCKETNEWS24
Tue, 12 Aug 2014 22:07:12 -0700

What is a Lotion Fes anyway? Well, as we said before, there is music, in this case electronica and DJs, and lotion. The word lotion might be a bit of a misnomer, though, this isn't quite lotion per say, it's more like clear lubricant. You might know it ...

Science Recorder

Science Recorder
Thu, 21 Aug 2014 16:15:00 -0700

Ahhhhh… the refreshing saltwater spray, the happy sounds of children playing in the soft white sand, the sweet aroma of sunscreen; just conjuring up these relaxing images makes one want to pack the car and head to the beach. Now, however, scientists ...
 
StyleBistro
Mon, 04 Aug 2014 06:58:28 -0700

Current Obsession: Nivea Skin Firming Hydration Lotion with Q10 (Source: Nivea, Thinkstock; Art by Tanya Leigh Washington)You might say the summer is half over—and technically, you might be right. But for me it's far from done. Many months back, when ...
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