• Ingredient Glossary & Guides
    • The Best Beauty Ingredients You Will Love Glossary Guide
    • Skincare Ingredient Guides
  • Beauty
    • Better Beauty Sleep
    • Beauty Expert Advice
    • Clean Beauty
    • Cosmetics
    • How to…
    • Discontinued Clinique
    • Makeup Tools & Brushes
    • Science of Beauty
  • Haircare
    • Hair Growth
    • Hair Growth Devices
    • Hair Maintenance Products
    • Hair Styling Tools
    • Haircare Tools
  • Skincare
    • Adult Acne
    • Anti-Aging
    • Skin Devices & Topicals
    • Skin Tools & Devices
    • Science of Skincare
    • Waterless Beauty
  • Contact
  • About
    • About Our Features: How Our Product Reviews are Unique
    • Disclaimer
    • Disclosures
    • Privacy Policy
    • Terms of Use

Style Chicks

Expert Beauty Reviews | Skincare Ingredient Guides

You are here: Home / Archives for Skincare / Ingredient Glossary

Ingredient Glossary

How to understand ingredients in haircare, skincare, and makeup. What ingredients are helpful and what ingredients are buzzwords or hype?

5 Things You Should Know Vitamin K + Dark Undereye Circles

June 24, 2019 · 6 Comments

Vitamin K INGREDIENT GUIDE is an overview of treating dark circles with Phytonadione.

Why K Works for Dark Undereye Circles

Vitamin K, is popular in under-eye creams because it can lighten infraorbital darkness, AKA under eye circles.

Vitamin K is also called Phytonadione on ingredient listings.

Phytonadione is most beneficial for dark circles with a blue or brown undertone.

This kind of dark under eye circle has a vascular component. They are known as “vascular dark circles” because leaking capillaries.

The trapped blood pools in the skin tissues and appears blue or purple once trapped. Over time, as it absorbs and settles, it appears a mid to dark reddish brown, like a bruise.

5 Things You Should Know about Vitamin K

  1. Vitamin K reverses the calcium deposits in elastin fibers. These deposits harden and cause wrinkles.
  2. Phytonadione helps with blood coagulation and circulation.
  3. Some dark circles are caused by weak vessels that allow blood near the surface of your skin. These circles have a blue, purple or brown undertone.
  4. Topical application of Phytonadione cream prior to an in-office procedure strengthens blood vessels. Stronger blood vessels means less bruising after surgical or laser treatments.
  5. As we age, we tend to get more broken capillaries. Vitamin K strengthens these capillaries so they are more resistant to breakage.

What to look for in a Vitamin K Topical

Vitamin K is most effective as part of a team instead of a standalone K cream or gel.

A study in the Journal of Cosmetic Dermatology showed topical Vitamin K works best when paired with retinol, Vitamins C, E, and the Bs. (1)

What to Know About Vitamin K and Retinol

If you use prescription retinol, apply the retinol first and then the topical K product.

What Percentage of Vitamin K is Most Effective?

In order to get Vitamin K benefits, choose a product with enough Phytonadione in the formula to be effective.

The study mentioned above used a 2% Phytonadione concentration when used with retinol, Vitamin C, and similar actives to treat dark circles.

The study showed good effect on strengthening blood vessels to stop future leaking and darkening. But it did not address existing discoloration.

Another study used a 5% concentration paired with other actives and focused on allevating brusing [2].

Recommended Phytonadione Products

Watercress contains Vitamin K along with C, E and copper.  One Watercress products we like is Watercress Eye Gel.

Farmaesthetics Watercress Eye Gel

This Farmaesthetics Watercress Eye Gel contains Watercress and certified organic herbs, flowers, and oils from American family farms. An ideal combo to restore, revitalize and refresh.

Vitamin K We love using products with watercress on the delicate eye area skin

We love using products with watercress on the delicate eye area skin

Peter Thomas Roth

Peter Thomas Roth POWER K EYE RESCUE combines Phytonadione with several treating ingredients to fix the underlying problem and address existing discoloration.

More UnderEye Dark Circle Options

It is often difficult to conceal dark circles and may be best to keep the skin hydrated and dewy to refract the light.

Another option is brighten around the orbital eye area instead.

Some helpful brightening options we love:

  • How to Best use Yves Saint Laurent Touche Eclat
  • YSL Touche Eclat High Cover Concealer
  • Why Chantecaille Eye Shade is the Best Brightener (we love shades Peony and Ginger to lighten and brighten the eye area)


REFERENCES

1. Mitsuishi, T. , Shimoda, T. , Mitsui, Y. , Kuriyama, Y. and Kawana, S. (2004), The effects of topical application of phytonadione, retinol and vitamins C and E on infraorbital dark circles and wrinkles of the lower eyelids. Journal of Cosmetic Dermatology, 3: 73-75. doi:10.1111/j.1473-2130.2004.00070.x

2. BAUMANN L. & al. The effects of topical vitamin K on bruising after laser treatment. Journal of the American Academy of Dermatology (2002).

Posted by Style Chicks / Filed In: Anti-Aging, Ingredient Glossary, Ingredient Guides
Tagged: Dark Circles, How to Treat Dark Circles, Ingredient Guide, Phytonadione, Vitamin K

The Science of Beauty: Can Tamanu Oil Really Help Scars & Stretch Marks?

June 19, 2019 · 7 Comments

When we hear there’s an organic oil that can be used for skin concerns such as anti-aging, acne, stretch marks, scars, razor burn, bug bites, and can be used for softer, smoother hair, we’re interested. But we are also skeptical. What does the research say? Anecdotal evidence supports beautiful hair and skin on those who use Tamanu Oil. Many people swear by Tamanu Oil for clearing up acne or fading an old scar. But does science back the Tamanu Oil folklore? What is Tamanu Oil? And how do you use it? We did Tamanu Oil Research.

 

Tamanu Oil nut on a Tamanu Tree.

Tamanu Oil comes from the nuts of the Tamanu Tree.

ABOUT TAMANU OIL

The locals call it “Green Gold”. Pacific island folk medicine uses Tamanu Oil for a host of natural remedies. In Southern India, Tamanu Oil is used for many skin ailments. In Taiwan, it is used for hair. Tamanu Oil has gained attention because of its’ rare beauty benefits. The oil comes from a nut of the Tamanu Tree. The Tamanu Tree is commonly found in Polynesia. Within the region, Tamanu Oil is prized for hair, skin and a host of medical uses. Ample anecdotal evidence exists for these uses. Countless people swear by Tamanu Oil. But there have been limited research studies on Tamanu Oil efficacy. Studies to date show a promising organic oil with many versatile uses.

What do we know about Tamanu Oil?

While used for years in Polynesian regions, Tamanu Oil is only a recent discovery to many of us.

Tamanu Oil is a lovely golden green color with a slight nutty scent.

Tamanu Oil is a lovely golden green color with a slightly nutty scent.

Tamanu oil is a topical healing agent that is:

  • antineuralgic
  • anti-inflammatory
  • antimicrobial
  • antibiotic
  • anti-oxidant

TAMANU OIL RESEARCH STUDIES

Tamanu Oil has been long associated with many health and beauty benefits. Research studies are still developing for the documentation of several promising medical uses. There is even research into Tamanu Oil’s potential benefit for cancer and HIV.(1)

But other Tamanu Oil uses are already well documented. These areas include the healing of burns and skin diseases. (2)

Tamanu Oil is both anti-inflammatory and antiseptic. Tamanu Oil is used for skin conditions such as:

  • acne scars
  • burns
  • dry scalp
  • eczema
  • mosquito bites
  • psoriasis
  • stings
  • stretch marks
  • flaky, scaly or dry skin.

Older stretch marks are notoriously difficult to treat. What would make Tamanu Oil more effective than any other remedy?
Its’ rare fatty acid profile.


RESEARCH: HOW TAMANU OIL HEALS SCARS & MARKS

There has been studies of the healing properties of Tamanu Oil. Of interest is the special fatty properties of Tamanu Oil. These fatty properties help soften wounds, scars and stretch marks.

Organic Tamanu oil has a unique fatty acid profile. It has an unusual fatty acid called calophyllic acid. There are few studies on Calophyllum (calophyllic acid). But studies do exist, and there are enough to give credence to the skin healing ability of Tamanu Oil. Various studies verified the wound healing, safety, and antibacterial properties of Calophyllum (3).

This supports the anecdotal reports of the skin improvement seen with the traditional use of Tamanu Oil for at least scars, burns, and stretch marks.

CONCLUSION

Tamanu Oil is an exciting and promising Oil for a host of topical and medical uses. Tamanu Oil research is still limited. But studies are still in development to further explore potential benefits. What we do know is that Tamanu Oil is effective on several skin conditions and treating damaged skin.

WARNING: Tamanu is a nut. Tamanu oil should be avoided by those with nut allergies.



REFERENCES

  1. Warrier, Kannan. (2010). Calophyllum inophyllum. Pages 168-174.
  2. Ibid, Page 176
  3. Léguillier, Teddy et al. “The Wound Healing and Antibacterial Activity of Five Ethnomedical Calophyllum inophyllum Oils: An Alternative Therapeutic Strategy to Treat Infected Wounds.” PloS one vol. 10,9 e0138602. 25 Sep. 2015, doi:10.1371/journal.pone.0138602 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4583440/

Posted by Style Chicks / Filed In: Clean Beauty, Green Beauty, Ingredient Glossary, Ingredient Guides, Organic, Science of Beauty, Skincare
Tagged: Tamanu Oil, Tamanu Oil Research, The Science of Beauty

The Science of Skincare: Can Tamanu Oil Really Help Scars & Stretch Marks?

June 19, 2019 · 7 Comments

When we hear there’s an organic oil that can be used for skin concerns such as anti-aging, acne, stretch marks, scars, razor burn, bug bites, and can be used for softer, smoother hair, we’re interested. But we are also skeptical. What does the research say? Anecdotal evidence supports beautiful hair and skin on those who use Tamanu Oil. Many people swear by Tamanu Oil for clearing up acne or fading an old scar. But does science back the Tamanu Oil folklore? What is Tamanu Oil? And how do you use it? We did Tamanu Oil Research.

Tamanu Oil nut on a Tamanu Tree.

Tamanu Oil comes from the nuts of the Tamanu Tree.

ABOUT TAMANU OIL

The locals call it “Green Gold”. Pacific island folk medicine uses Tamanu Oil for a host of natural remedies. In Southern India, Tamanu Oil is used for many skin ailments. In Taiwan, it is used for hair. Tamanu Oil has gained attention because of its’ rare beauty benefits. The oil comes from a nut of the Tamanu Tree. The Tamanu Tree is commonly found in Polynesia. Within the region, Tamanu Oil is prized for hair, skin and a host of medical uses. Ample anecdotal evidence exists for these uses. Countless people swear by Tamanu Oil. But there have been limited research studies on Tamanu Oil efficacy. Studies to date show a promising organic oil with many versatile uses.

What do we know about Tamanu Oil?

While used for years in Polynesian regions, Tamanu Oil is only a recent discovery to many of us.

Tamanu Oil is a lovely golden green color with a slight nutty scent.

Tamanu Oil is a lovely golden green color with a slightly nutty scent.

Tamanu oil is a topical healing agent that is:

  • antineuralgic
  • anti-inflammatory
  • antimicrobial
  • antibiotic
  • anti-oxidant

TAMANU OIL RESEARCH STUDIES

Tamanu Oil has been long associated with many health and beauty benefits. Research studies are still developing for the documentation of several promising medical uses. There is even research into Tamanu Oil’s potential benefit for cancer and HIV.(1)

But other Tamanu Oil uses are already well documented. These areas include the healing of burns and skin diseases. (2)

Tamanu Oil is both anti-inflammatory and antiseptic. Tamanu Oil is used for skin conditions such as:

  • acne scars
  • burns
  • dry scalp
  • eczema
  • mosquito bites
  • psoriasis
  • stings
  • stretch marks
  • flaky, scaly or dry skin.

Older stretch marks are notoriously difficult to treat. What would make Tamanu Oil more effective than any other remedy?
Its’ rare fatty acid profile.


RESEARCH: HOW TAMANU OIL HEALS SCARS & MARKS

There has been studies of the healing properties of Tamanu Oil. Of interest is the special fatty properties of Tamanu Oil. These fatty properties help soften wounds, scars and stretch marks.

Organic Tamanu oil has a unique fatty acid profile. It has an unusual fatty acid called calophyllic acid. There are few studies on Calophyllum (calophyllic acid). But studies do exist, and there are enough to give credence to the skin healing ability of Tamanu Oil. Various studies verified the wound healing, safety, and antibacterial properties of Calophyllum (3).

This supports the anecdotal reports of the skin improvement seen with the traditional use of Tamanu Oil for at least scars, burns, and stretch marks.

CONCLUSION

Tamanu Oil is an exciting and promising Oil for a host of topical and medical uses. Tamanu Oil research is still limited. But studies are still in development to further explore potential benefits. What we do know is that Tamanu Oil is effective on several skin conditions and treating damaged skin.

WARNING: Tamanu is a nut. Tamanu oil should be avoided by those with nut allergies.



REFERENCES

  1. Warrier, Kannan. (2010). Calophyllum inophyllum. Pages 168-174.
  2. Ibid, Page 176
  3. Léguillier, Teddy et al. The Wound Healing and Antibacterial Activity of Five Ethnomedical Calophyllum inophyllum Oils: An Alternative Therapeutic Strategy to Treat Infected Wounds.” PloS one vol. 10,9 e0138602. 25 Sep. 2015, doi:10.1371/journal.pone.0138602 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4583440/

Posted by Style Chicks / Filed In: Ingredient Glossary, Ingredient Guides, Science of Beauty, Skincare
Tagged: Tamanu Oil, Tamanu Oil Research, The Science of Beauty

How to Use Sunflower Oil for Hair and Skin

June 3, 2019 · 15 Comments

Sunflower Oil is a carrier oil with many beauty benefits. This article explains how to use sunflower oil for hair and skin.

Sunflower Oil has many hair and skin benefits

Sunflower Oil has many hair and skin benefits

Sunflower oil can be used alone or combined with other oils. It is well tolerated by sensitive skin.

Why Use Sunflower Oil

Sunflower Seed Oil is hydrating, nourishing and an excellent supporting oil base. Sunflower Oil especially benefits coarse hair textures. It locks in moisture and deters hair breakage.

Sunflower Oil has many hair and skin benefits.

How to Use Sunflower Oil on Skin

Sunflower Oil is an effective face and body moisturizer. But it is a semi-greasy oil which makes the application and dry-down difficult. When mixed into a lotion or cream, sunflower oil can be exceptionally useful on body skin.

Sunflower Oil is non-comedogenic and can moisturize acne-prone areas. It soothes eczema, scarring, redness, and irritation.

  • Sunflower Oil retains moisture in the skin and is also rich in vitamin E.
  • Functions as a lipid buffer against drying ingredients or topical medicines [1]
  • Sunflower Oil softens skin irritated by drying topicals. It works well with Retinol because it hydrates and calms red, irritated skin.
  • Linoleic acid Gives sunflower seed oil anti-inflammatory properties.
  • It is a natural treatment for atopic dermatitis. [2]
  • The Vitamin E in Sunflower oil lightens skin discoloration.
  • It is gentle enough to use as an eye makeup remover. Apply oil directly to face and allow 30 seconds to dissolve makeup, massage gently if desired. Wash face as normal. To remove eye makeup, hold a sunflower seed soaked cotton ball over your closed lid for about 20 seconds. It dissolves mascara without rubbing or pulling on lashes.

Sunflower Oil Hair Benefits

Sunflower Oil is an excellent unscented oil for hair hydration and softening. It works as a base for scalp treatment essential oils such as Tea Tree, Rosemary, and Peppermint. It softens hair when combined with rosemary and lavender oils.

  • Vitamin E promotes scalp health.
  • It blends well with other oils. A blend of Sunflower Oil and Coconut Oil moisturizes and strengthens hair, and is not as greasy.
  • Ideal for coarse hair because it helps hair retain moisture. It is a light non-polar solvent that prevents water loss. It penetrates the hair shaft to lock and retain moisture.
  • It is less greasy than olive oil and won’t cause breakouts.
  • It contains Omega 9, an essential acid needed to stop breakage and stimulate hair growth.

Sunflower Oil benefits all hair types, especially hair needing extra moisture. This includes coarse hair, curly hair, and damaged hair.

General Beauty Benefits of Sunflower Oil

Use Sunflower oil for coarse and brittle hair to stop breakage and dryness

Sunflower oil on coarse hair prevents breakage

Sunflower Oil has a highly nutritious composition. It is one of the healthiest oils skin and hair application. The main component of sunflower oil is linoleic acid. Its other components include oleic acid and palmitic acid, lecithin, carotenoids, tocopherols, and numerous vitamins. These nourish skin and hair.

While Sunflower Oil is an effective moisturizer, it is also a carrier oil. It enables the other active moisturizing ingredients to sink deeper into the skin. Combine sunflower oil with jojoba, grapeseed oil, almond oil, or essential oils for extra benefits.

Interesting in learning more about Sunflower Oil for reversing hair loss? Check out this article: 3 Proven Ways To Use Sunflower Oil For Hair Loss: 28 Days Later.



References

Loden M, Andersson AC. Effect of topically applied lipids on surfactant-irritated skin. Br J Dermatol. 1996;134(2):215-20.

Lopez Perez G, Torres Altamirano M. Indications for sunflower oil concentrate in the treatment of atopic dermatitis. Rev Alerg Mex. 2006;53(6):217-25.

Posted by Style Chicks / Filed In: Haircare, Ingredient Glossary, Ingredient Guides, Skincare
Tagged: Best Oil for Brittle Hair, Best Oil for Coarse Hair, Best Oil for Hair Breakage, Favorite Skincare Ingredients, Skincare, Sunflower for hair, Sunflower Hair Oiling, Sunflower Oil for skin

  • Newer Entries
  • 1
  • 2
  • 3
  • Previous Entries

Search Style Chicks

Pages

  • About the Style Chicks
  • Contact Us
  • Discontinued Clinique Products Guide Lost Clinique You Love
  • The Best Beauty Ingredients You Will Love Glossary Guide

Review + Guide Topics

  • Accessories
  • Adult Acne
  • Anti-Aging
  • Beauty
  • Beauty Expert Advice
  • Beauty Tools + Devices
  • Better Beauty Sleep
  • Black Friday & Cyber Monday
  • Body
  • Clean Beauty
  • Cosmetics
  • Curly Hair Care
  • Decor
  • Discontinued Products
  • Entertaining
  • Essential Oils
  • Exercise
  • Fashion
  • Featured
  • Food
  • For the Home
  • Fragrance Free
  • Gadgets
  • Gifts
  • Green Beauty
  • Gym Beauty Bag
  • Hair
  • Hair Care Devices & Tools
  • Hair Growth
  • Hair Growth Devices
  • Haircare
  • Health
  • How to
  • How to…
  • Ingredient Glossary
  • Ingredient Guides
  • J-Beauty
  • Jewelry
  • K-Beauty
  • Life Hacks
  • Lifestyle
  • Makeup
  • Makeup Tools & Brushes
  • New Products
  • News
  • Organic
  • Pre-Shampoo Hair Treatments + Conditioning Remedies
  • Product Review
  • Product Updates
  • Science of Beauty
  • Science of Skincare
  • Sensitive Skin
  • Sephora
  • Shoes!
  • Skin Tools & Devices
  • Skincare
  • Spa Economy
  • Style
  • Tea
  • Technology
  • Things I want
  • Travel
  • Unscented
  • Vanity Table
  • Waterless Beauty
  • Weddings

Welcome to Style Chicks

Since 2007, we are your trusted source for expert hair and skincare reviews, in-depth ingredient guides, and info on hard-to-find and discontinued beauty products. Whether you're looking for smarter skincare choices, hair growth options, clean beauty cosmetics reviews, ingredient glossary, better beauty sleep, hair care tips, beauty how-to guides or trying to track down your holy grail favorite, we’ve got you covered.


Copyright © 2007 - 2025 STYLE CHICKS