Frequently asked questions.

If you’re unsure and just beginning your journey with REJNA, we recommend starting with the BioTech Exosome Serum. It integrates seamlessly into any routine. Pair it with the BioTech StemCell Moisturiser.

Or take the routine finder: four questions, then a routine in the order it is used.

REJNA is built on a minimal routine. Sometimes, you only need two or three products. For example:

• Morning: BioTech Exosome Serum, BioTech StemCell Moisturiser, Daily Defence SPF 50
• Evening: Radiance Reset AHA Cleanser, NightLogic Retinol Oil Serum or PhytoRetin Renewal Oil, Matrixyl® 3000 Peptide Eye Cream

Less confusion. More clarity.

Every REJNA formula is developed with dermatological expertise. We strongly recommend performing a patch test before using any new skincare product for the first time: apply a small amount to the inside of your wrist or elbow and leave for 24 hours. If you experience redness, itching, swelling, or irritation, discontinue use immediately.

Full ingredient lists are on every product page and in our ingredient and allergen notice.

Our formulations are designed with universal skin biology in mind, including skin that is more prone to hyperpigmentation. Patch test any new product before first use.

Most of our products are formulated to be suitable during pregnancy and breastfeeding. We exclude prescription-strength retinoids, aggressive exfoliants, and endocrine-disrupting compounds. However, we always recommend consulting with your healthcare provider prior to introducing any new product during this time.

The NightLogic Retinol Oil Serum contains a retinoid (Retinyl Palmitate) and is not recommended during pregnancy. Retinyl Palmitate is also present, at low concentrations, in the BioTech StemCell Moisturiser and the Matrixyl® 3000 Peptide Eye Cream.

Cells release tiny membrane-bound vesicles that carry material between them. Exosomes are one class of those vesicles, and a plant-derived exosome is one isolated from plant material rather than from an animal or human cell line. On the BioTech Exosome Serum the pack describes them as green tangerine and fermented water radish.

All REJNA products are formulated without added synthetic fragrance or essential oil fragrance. Where any product contains a botanical ingredient that naturally carries a mild aroma as a functional property (not as a fragrance), this is declared in the full ingredient list. No REJNA product contains “Parfum” or added fragrance as a separate ingredient.

REJNA combines heritage botanicals with modern biotechnology. Our focus is skin biology, not trends. We formulate with ingredients like Matrixyl® 3000, niacinamide, and plant stem cell extracts, and leave out everything that doesn’t serve your skin’s long-term health. Every product is developed with dermatological expertise and made in the UK.

All REJNA products are formulated without animal-derived ingredients and are not tested on animals at any stage of development or manufacture, in compliance with the UK Cosmetics Regulation, which prohibits the sale of cosmetics tested on animals.

REJNA products are made in the UK. As UK law requires, every product has been assessed by a qualified cosmetic safety assessor before being placed on the market, and each has a Product Information File that includes its Good Manufacturing Practice (GMP) documentation. Read the regulatory statement

For best results, consistency and proper application order are key.

The figures on our homepage come from a six-week consumer study in which 110 people aged 25 to 67 answered for themselves; they are self-assessments, not measurements.

Four steps, in this order: cleanse, signal, support, protect.

• Morning: Radiance Reset AHA Cleanser, BioTech Exosome Serum, Matrixyl® 3000 Peptide Eye Cream, BioTech StemCell Moisturiser, Daily Defence SPF 50
• Night: Radiance Reset AHA Cleanser, NightLogic Retinol Oil Serum, Matrixyl® 3000 Peptide Eye Cream, BioTech StemCell Moisturiser

PhytoRetin Renewal Oil is the plant-powered retinol alternative: use it in place of the retinol, never alongside it. The routine, step by step