What Is Rosa Meichibon/Delgramaue Callus?
Rosa Meichibon/Delgramaue Callus comes from a cultured callus of a hybrid rose that crosses Rosa sp. ‘Meichibon’ with Rosa sp. ‘Delgramaue’. A callus is a mass of undifferentiated plant cells grown in a sterile lab setting. These cells are rich in naturally occurring hydrators like sugars and amino acids, protective antioxidants such as polyphenols and flavonoids plus small amounts of plant lipids that feel silky on skin.
Rose extracts have been prized for centuries for their softness and scent. The move to use cultured rose callus began in the early 2000s when cosmetic labs looked for greener ways to harvest plant actives without large fields or seasonal limits. By growing the cells in vitro companies get a steady supply of bioactive molecules while leaving the parent plants intact.
Production starts by taking a tiny piece of the hybrid rose, placing it on a nutrient gel and letting it form a callus. The callus is then multiplied in liquid culture, collected and broken open to release its cell contents. The final material is filtered, concentrated and sometimes blended with glycerin or water for easy use in formulas.
You will usually find Rosa Meichibon/Delgramaue Callus in anti aging serums, hydrating sheet masks, daily moisturizers, brightening essences and leave-on treatments that aim to give skin a fresh rosy glow.
Rosa Meichibon/Delgramaue Callus’s Cosmetic Benefits/Uses
This ingredient brings two main skin friendly roles to a formula:
- Skin Conditioning: The mix of plant sugars, amino acids and antioxidants helps keep the surface smooth, supports moisture balance and gives a healthier look over time
- Emollient: The small amount of natural lipids coats the skin in a light protective layer that reduces water loss and adds immediate softness without a greasy feel
Who Can Use Rosa Meichibon/Delgramaue Callus
Because it is light and hydrating without being oily, Rosa Meichibon/Delgramaue Callus suits most skin types including dry, normal, combination, oily and sensitive skin. Only people with a known allergy to roses or flower extracts may need to skip it since even cultured cells can hold trace aromatic compounds that trigger a reaction.
The ingredient is grown entirely from plant cells in a controlled lab so it contains no animal material. That makes it acceptable for vegans and vegetarians as long as the finished product is also certified cruelty free.
There is no published evidence that the callus extract poses a problem for pregnancy or breastfeeding. Still this is not medical advice and anyone who is pregnant or nursing should show the full product label to a qualified healthcare professional before use.
Rosa Meichibon/Delgramaue Callus does not make skin more sensitive to the sun so there is no extra risk of photosensitivity. As always a daily broad spectrum sunscreen is still recommended for general skin health.
Potential Side Effects/Adverse Reactions
Responses to any cosmetic ingredient differ from person to person. The points below cover potential side effects only and most users will not notice these problems if the product has been well formulated and used as directed.
- Irritation in very sensitive skin such as tingling or mild burning shortly after application
- Redness or rash linked to a rose allergy or fragrance intolerance
- Contact dermatitis if combined with other actives that disrupt the skin barrier
- Eye stinging if the product is accidentally rubbed into the eye area
If you notice any of the effects above stop using the product and consult a healthcare professional if symptoms persist.
Comedogenic Rating
Rating: 1/5. Rosa Meichibon/Delgramaue Callus is mostly made of water soluble sugars, amino acids and antioxidant compounds with only trace plant lipids, which means it sits lightly on skin and is quickly absorbed rather than building up inside pores. The small amount of emollient fatty material keeps it from being a perfect zero, yet the concentration used in formulas is usually under 2 percent so clogging risk stays very low. Suitable for acne-prone or breakout-prone skin in most cases.
Summary
Rosa Meichibon/Delgramaue Callus conditions skin and adds a soft emollient veil by delivering humectant sugars, nourishing amino acids and soothing antioxidants gathered from lab-grown rose cells. These actives boost hydration, support barrier comfort and give a subtle healthy glow. While not a household name like hyaluronic acid, the ingredient is gaining quiet traction in boutique serums and K-beauty sheet masks because it offers plant powered benefits without heavy farming or seasonal limits. Safety data and anecdotal use point to a very low irritation profile; still, skin is individual so patch testing any new product is a smart habit.