Hydrolyzed Verbascum Thapsus Flower: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 27, 2025
Share:
Inside this article:

We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Hydrolyzed Verbascum Thapsus Flower?

Hydrolyzed Verbascum Thapsus Flower comes from the blossoms of Verbascum thapsus, a tall plant also called common mullein that belongs to the figwort family. The flowers are rich in natural pigments, flavonoids and small amounts of proteins. When these blossoms are treated with water, specific enzymes or a mild acid solution, the larger protein and sugar molecules break apart into smaller, skin friendly fragments. This process is known as hydrolysis and it helps the extract blend smoothly into modern skin care formulas.

For centuries mullein flowers were steeped in oils or teas to soothe skin discomfort. As cosmetic science advanced, researchers isolated the hydrolyzed form of the flower and noticed its strong ability to neutralize free radicals and support the skin’s surface. Today labs produce the ingredient at scale: freshly harvested flowers are cleaned, dried, finely milled then mixed with the chosen hydrolysis medium. After several hours the mixture is filtered, concentrated and standardized to ensure a consistent level of active compounds.

You will most often spot Hydrolyzed Verbascum Thapsus Flower in brightening serums, calming moisturizers, anti-aging creams, after-sun lotions and sheet masks where it teams up with other soothing or protective agents.

Hydrolyzed Verbascum Thapsus Flower’s Cosmetic Benefits/Uses

This plant-based ingredient earns its place in formulas thanks to two main roles

  • Antioxidant: Helps mop up free radicals created by UV light, pollution or daily stress. By limiting this oxidative damage the extract can support a more even tone and maintain skin’s youthful look
  • Skin Protecting: Forms a light, breathable layer that reinforces the skin barrier and reduces moisture loss which can lead to smoother, more comfortable skin throughout the day

Who Can Use Hydrolyzed Verbascum Thapsus Flower

This gentle extract suits most skin types, including oily, dry, combination and sensitive skin, because it is light, water based and non-greasy. Very reactive or allergy-prone skin should still watch for any botanical sensitivities, but the hydrolyzed form is generally mild.

The ingredient is plant derived and processed without animal by-products so it is appropriate for vegans and vegetarians.

Current data shows no known issues for women who are pregnant or breastfeeding, yet research on topical use during these times is limited. This is not medical advice and anyone who is expecting or nursing should clear any new skincare with a doctor first just to be safe.

Hydrolyzed Verbascum Thapsus Flower does not increase the skin’s sensitivity to sunlight and can be used day or night without raising the risk of sunburn. As with any routine, daytime SPF is still important.

Potential Side Effects/Adverse Reactions

Responses to Hydrolyzed Verbascum Thapsus Flower can vary from one person to another. The issues listed below are only potential outcomes and are unlikely when the ingredient is formulated and used as intended.

  • Allergic contact dermatitis – a small number of users may develop redness itching or swelling if they are sensitive to mullein or related plants
  • Mild stinging or flushing – could occur when layered with strong acids or retinoids that have already weakened the skin barrier
  • Ingredient contamination – if the extract is poorly preserved it may spoil leading to breakouts or irritation

If any unwanted reaction appears stop using the product and seek advice from a healthcare professional or dermatologist.

Comedogenic Rating

Rating: 0/5

Hydrolyzed Verbascum Thapsus Flower is water based and contains negligible oils or waxes so it does not block pores or trap sebum. Its small, soluble molecules rinse away easily and sit lightly on the skin.

This makes it a comfortable option for those prone to acne or breakouts.

If the extract appears in a product filled with heavy butters or occlusive silicones pore clogging could still occur, so assess the full formula not just this single component.

Summary

Hydrolyzed Verbascum Thapsus Flower delivers two main perks: it neutralizes free radicals as an antioxidant and it helps reinforce the skin barrier for better moisture retention. The hydrolysis process breaks the flower’s larger molecules into active fragments that perform these jobs efficiently.

Although it has not reached the popularity of staples like niacinamide it is quietly showing up in brightening serums, calming creams and after sun lotions thanks to its gentle plant origin and easy compatibility with other actives.

Current research and user reports point to a very low risk of irritation or pore issues. Even so it is wise to patch test any new product with this extract to confirm your skin’s comfort before full use.

Was this article helpful?
More from Glooshi:
ADVERTISEMENT
Get all our top headlines in beauty.
Delivered right to your inbox each week. Zero spam, all goodness, opt-out at anytime.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Get the latest beauty news, top product recommendations & brand-exclusive discount codes direct to your inbox.
Send good feedback:

All feedback is greatly appreciated, anonymous, and will be used to improve the quality of our articles.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Send bad feedback:

All feedback is greatly appreciated, anonymous, and will be used to improve the quality of our articles.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Search