The Rose Flower Extract from CONIUNCTA® is obtained from the flower of the Damask rose (Rosa damascena). According to the Technical Data Sheet, purified water serves as the extraction solvent, and the INCI is Rosa Damascena Flower Extract. We offer the liquid extract in three carrier variants: glycerin, pentylene glycol and propylene glycol. The raw material is available in conventional quality and, according to the CDS, is suitable for vegan formulations. For formulators in the cosmetics and food industries, three points are particularly relevant: the primary marker quercetin-3-glucoside documented in the CDS, the substantiated cosmetic effects of skin conditioning and antioxidant activity, and the glycerin variant, which is the only one also intended for food.
Quercetin-3-glucoside as the documented primary marker of the rose flower
The CDS identifies quercetin-3-glucoside as the primary marker and assigns it to the group of flavonoids or flavonoid glycosides. A content of 105 to 540 µg/g is stated for the finished product. Important for context: this is a calculated value that the data sheet explicitly labels as a semi-quantitative estimate based on limited data. It does not imply standardization to this marker. As a reference, the CDS cites literature contents for dried petals of 0.5 to 2 % flavonol glycosides (Schiber et al. 2005, Kumar et al. 2008).
In addition, the CDS contains calculated example values for the marker content in the end product: at a use level of 3.5 % in cosmetics, this results in 3.7 to 18.9 µg/g in the formulation, and at 1.25 % in food, 1.3 to 6.8 µg/g. These values serve as estimates and do not replace your own analytics. However, they show how the marker information of the raw material can be transferred to the finished formulation, for example for internal specifications or product dossiers.
Kaempferol glycosides, gallic acid and 2-phenylethanol in the accompanying profile
In addition to the primary marker, the CDS lists further compounds:
- Kaempferol glycosides as a second flavonol glycoside group alongside quercetin-3-glucoside
- Gallic acid as a phenolic acid
- 2-Phenylethanol as an aromatic alcohol of the rose flower
- Citronellol and geraniol, which the CDS identifies as fragrance allergens
The data sheet makes a differentiating statement regarding citronellol and geraniol: both compounds occur in the essential oil, but only to a small extent in the aqueous extract. This distinction between essential oil and aqueous extract is helpful for assessing the finished product. According to the SDS, the safety assessment of the cosmetic end product lies with the responsible person. The technical data sheet describes the color and odor of the extract as characteristic; the specific values can be found in the respective certificate of analysis (CoA).
Skin conditioning and antioxidant protection: what the CDS substantiates
For cosmetics, the CDS literally states the effect “Skin conditioning, antioxidant” and, as the supported claim area, “Antioxidant protection”. Formulators can therefore use the Rose Flower Extract in concepts that promote a skin-care function and an antioxidant contribution. The dossier does not cover any further efficacy claims. The also mentioned target “General skin health” is explicitly noted in the CDS as mechanistic background and is explicitly not a product claim.
For food applications, the CDS records the effect “Traditional dietary ingredient”. No functional efficacy promises for food can be derived from this. The statement describes the status of the rose flower as a food ingredient and forms the basis for its classification in beverage and food concepts.
Glycerin, pentylene glycol or propylene glycol: three aqueous systems compared
All three variants are based on the same extraction with purified water and contain approx. 30 % extract regardless of the carrier. According to product information, 1 kg of CONIUNCTA® extract contains the hydrophilic constituents of approx. 30 g of dried plant parts. The variants differ in carrier composition, full INCI and permitted area of use:
- Glycerin variant: approx. 70 % anhydrous glycerin (≥ 99.5 %) and approx. 30 % extract. Full INCI: Glycerin, Rosa Damascena Flower Extract. Suitable for cosmetics and food.
- Pentylene glycol variant: approx. 50 % water, approx. 30 % extract and approx. 20 % pentylene glycol (synthetic). Full INCI (EU): Aqua, Pentylene Glycol, Rosa Damascena Flower Extract. Suitable for cosmetics.
- Propylene glycol variant: approx. 40 % water, approx. 30 % extract and approx. 30 % propylene glycol. Full INCI: Aqua, Propylene Glycol, Rosa Damascena Flower Extract. Suitable for cosmetics, not food grade according to the TDS.
For cosmetics, the CDS and TDS consistently state a use concentration of 2 to 5 % for all variants. In practice, the desired INCI declaration often determines the choice: those aiming for an ingredient list without Aqua choose the glycerin variant, while the pentylene glycol and propylene glycol variants suit formulations that already contain these diols or whose declaration is aligned accordingly. Our technical team will gladly clarify individually which variant suits your specific formulation. An overview of our water-soluble raw materials can be found in the collection Glycerin Extracts.
Food applications exclusively with the glycerin variant
The CDS, TDS and SDS are clear on this point: only the glycerin variant is intended for food. The CDS and the glycerin TDS cite, as a literature reference, a use concentration of 0.5 to 2 % in functional foods and beverages. For the propylene glycol variant, the TDS explicitly states that food applications are not applicable. This makes the Rose Flower Extract suitable for companies that want to use the same botanical raw material in both a cosmetics line and a beverage or food concept, provided they opt for the glycerin variant.
The SDS also points out that allergen labeling under Regulation (EU) 1169/2011 is the responsibility of the food business operator. Checking the labeling is therefore part of the responsibility for the finished food.
Regulatory, safety and storage from the SDS and TDS
According to the safety data sheet (version 12.0, dated 18.10.2026), the extract is not a hazardous substance under CLP Regulation (EC) No 1272/2008: no pictograms, no signal word, no H or P statements. It is not dangerous goods under ADR/RID, IMDG and IATA and not a marine pollutant. All carrier variants are classified in WGK 1 (slightly hazardous to water), and the storage class according to TRGS 510 is 12 (non-combustible liquids). REACH registration is not applicable, as it is a mixture and the extract is exempt under Annex V No. 8. For cosmetics, the CDS and SDS refer to Annex III of Regulation (EC) 1223/2009, entry 366. Under the Biocidal Products Regulation, the extract is not a biocidal product.
The shelf life is 24 months when stored dry between 10 and 30 °C in the originally sealed container; the SDS states a storage temperature of 15 to 25 °C. Temperature-dependent color changes may occur during storage. In the event of turbidity or precipitation, filtration is required; this does not affect the quality of the product. We provide the TDS, SDS and CDS for all three variants via our Technical Documentation. Further aqueous plant extracts can be found in our collection Classic Plant Extracts. Our technical team will answer specific formulation and dosage questions.
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