A highlighter, also called a fluorescent pen, is a type of writing device used to bring attention to sections of text by marking them with a vivid, translucent colour.
A typical highlighter is fluorescent yellow, with the color coming from pyranine. Different compounds, such as rhodamines (Rhodamine 6GD, Rhodamine B) are used for other colours.
Skin is the layer of usually soft, flexible outer tissue covering the body of a vertebrate animal, with three main functions: protection, regulation, and sensation.
Other animal coverings, such as the arthropod exoskeleton, have different developmental origin, structure and chemical composition. The adjective cutaneous means "of the skin" (from Latin cutis 'skin'). In mammals, the skin is an organ of the integumentary system made up of multiple layers of ectodermal tissue and guards the underlying muscles, bones, ligaments, and internal organs. Skin of a different nature exists in amphibians, reptiles, and birds. Skin (including cutaneous and subcutaneous tissues) plays crucial roles in formation, structure, and function of extraskeletal apparatus such as horns of bovids (e.g., cattle) and rhinos, cervids' antlers, giraffids' ossicones, armadillos' osteoderm, and os penis/os clitoris.
All mammals have some hair on their skin, even marine mammals like whales, dolphins, and porpoises that appear to be hairless.
The skin interfaces with the environment and is the first line of defense from external factors. For example, the skin plays a key role in protecting the body against pathogens and excessive water loss. Its other functions are insulation, temperature regulation, sensation, and the production of vitamin D folates. Severely damaged skin may heal by forming scar tissue. This is sometimes discoloured and depigmented. The thickness of skin also varies from location to location on an organism. In humans, for example, the skin located under the eyes and around the eyelids is the thinnest skin on the body at 0.5 mm thick and is one of the first areas to show signs of aging such as "crows feet" and wrinkles. The skin on the palms and the soles of the feet is the thickest skin on the body at 4 mm thick. The speed and quality of wound healing in skin is promoted by estrogen.
Fur is dense hair. Primarily, fur augments the insulation the skin provides but can also serve as a secondary sexual characteristic or as camouflage. On some animals, the skin is very hard and thick and can be processed to create leather. Reptiles and most fish have hard protective scales on their skin for protection, and birds have hard feathers, all made of tough beta-keratins. Amphibian skin is not a strong barrier, especially regarding the passage of chemicals via skin, and is often subject to osmosis and diffusive forces. For example, a frog sitting in an anesthetic solution would be sedated quickly as the chemical diffuses through its skin. Amphibian skin plays key roles in everyday survival and their ability to exploit a wide range of habitats and ecological conditions.
On 11 January 2024, biologists reported the discovery of the oldest known skin, fossilized about 289 million years ago, and possibly the skin from an ancient reptile.
by Marie
I absolutely love this. My new holy grail. The highlight is so angelic. I like to swip it under the brow bone, tip of my nosie, and on the Cupid’s bow. I then dab and blend it out with my finger, super quick and easy. The balm end is great for the lips! And it smells super yummy, like faint vanilla. You can also use the balm layered with the highlight to make the formula even more sheered out and dewy looking. Now for the BAD news: you get such little product. Quite disappointing, but the packaging is super lux and the formula is great. Dang I just need more of it!
by Hull
I’ll be honest: I almost never use the “balm” end of this as it gives a super runway/editorial “wet” look that isn’t great for everyday and can just make you seem oily, whether you use it alone or under the highlighter. I’ve only been using the balm as an “eye gloss” on occasion when I’m not wearing anything else on my eyes.
However, the highlighter end is so pretty, this still gets 4 stars from me!
I was initially afraid about using it on top of my foundation/blush for fear of discoloring this product, but I haven’t run into that issue at all. It’s very creamy and easily blendable with the tap of a finger. It also smells amazing, like vanilla frosting but not in a way that is noticeable to others.
by Robin
Exactly what I have been looking for as a highlighter for my eyelids to give “shine” without the glittery eyeshadow look. I need to buy another one for a backup! Pat McGrath always comes thru for my makeup needs.
by Gabe
This product is my holy grail. This highlighter balm duo helps me maximize pigments ALL around my face esp eyeshadow! It just gives you that runway ready wet dewy look! I mean… just incredible. You can also use this product to simply give your face a nice clean sheen for a no makeup bare face kinda vibe. You can also use this in conjunction with other highlighters to really make the pigment POP! My only complaint is I wish it brought more product!!!