AHA acids (alpha hydroxy acids) are a group of natural fruit-derived acids — glycolic, lactic, malic, citric and mandelic — found in sugar cane, milk, apples, citrus fruits and bitter almonds. Because they are water-soluble, they act on the surface of the epidermis, where they loosen the bonds between dead corneocytes and initiate the process of chemical exfoliation. They stimulate collagen synthesis, accelerate cell renewal and improve the penetration of other active ingredients. They effectively smooth wrinkles, reduce discolouration, even out skin tone and give the skin a fresh, youthful look. Ideal for caring for dull, mature and photoaged skin — they absolutely require an SPF cream in the morning.
EXFOLIATION
Clinical studies
Glycolic 8% for 22 weeks: 37% reduction in fine lines and texture refinement (Stiller et al., 1996, n=74).
Mechanism of action
Hydrolysis of the desmosomal bonds between corneocytes by lowering pH. They activate fibroblasts to synthesise new collagen and GAGs (hyaluronic acid). They require SPF in the morning.
Concentration
5-10% (OTC), up to 70% (in-office treatments)
Glycolic acid is the smallest and most active of the AHA (alpha-hydroxy acids) group — thanks to its low molecular weight, it penetrates deep into the layers of the epidermis. Derived from sugar cane, it works by loosening the bonds between dead corneocytes, initiating the process of chemical exfoliation. It stimulates the synthesis of new collagen and accelerates cell renewal, thereby smoothing wrinkles, reducing hyperpigmentation, and improving skin texture. It effectively unclogs pores, reducing imperfections and blackheads, which is why it works well in the care of oily, problematic skin and skin with signs of photoaging. It requires the use of an SPF cream — it increases the skin's sensitivity to UV radiation.
Exfoliation
Clinical studies
10% glycolic acid over 12 weeks: a 30% reduction in wrinkles and a 27% increase in epidermal thickness (Bernstein et al., 2001).
Mechanism of action
Hydrolysis of desmosomal bonds between corneocytes by lowering pH. Stimulation of collagen synthesis through fibroblast activation.
Vitamin C (ascorbic acid) is a water-soluble antioxidant essential to humans, regarded in cosmetics as the gold standard of brightening and anti-aging protection. It performs multiple functions: it strongly neutralizes free radicals, is an essential cofactor in collagen synthesis, inhibits melanin production in melanocytes and strengthens the action of UV filters. It has been clinically proven that, used regularly, it reduces wrinkles, evens out skin tone, brightens hyperpigmentation and restores a youthful glow to the complexion. The most effective forms are L-ascorbic acid (the strongest but unstable) and stable derivatives: Ascorbyl Glucoside, tetrahexyldecyl ascorbate (THD) and magnesium ascorbyl phosphate. Ideal in the care of all skin types, especially dull, tired skin with photoaging and hyperpigmentation — best applied in the morning before an SPF cream.
Radiance
Clinical studies
10-15% L-ascorbic acid over 12 weeks: 16% increase in collagen, 26% reduction in wrinkles, 30% brightening of hyperpigmentation (Humbert et al., 2003, n=20).
Mechanism of action
A cofactor of the enzymes that hydroxylate proline and lysine in collagen synthesis (without vitamin C, collagen synthesis stops). It inhibits tyrosinase. Synergy with vitamin E and ferulic acid.
Hydrolyzed rice protein is a natural ingredient obtained from rice grains through controlled enzymatic hydrolysis, which breaks proteins down into small, low-molecular-weight peptides. It is rich in essential amino acids (lysine, leucine, arginine), the building blocks of keratin and collagen — the main structural proteins of the epidermis. It penetrates deep into the skin, where it rebuilds the hydrolipid barrier, strengthens the structure and increases resistance to damage. It also acts as a natural moisturising factor (NMF), retaining moisture in the intermediate layers of the epidermis. Ideal for mature, dry skin with wrinkles and loss of elasticity — especially recommended in firming and strengthening products.
REBUILDING
Clinical studies
22% increase in skin smoothness and 18% reduction in wrinkle depth over 4 weeks (profilometry, n=30).
Mechanism of action
Low-molecular-weight rice peptides (5-15 kDa) act as an NMF. Amino acids (lysine, arginine) serve as a substrate for keratin and collagen synthesis. They form a tightening film that instantly smooths the skin.
Boosters — optional routine upgrades: exfoliation 1–2× a week, toner daily after cleansing, mask 1× a week, eye cream when you want to focus on the eye area.
No boosters for this line — the AM+PM essence is complete on its own.
Your set — discount on the cheapest
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All you need to know before buying and while using
When will I see the first results?
The first results (hydration, smoothing, a soothing effect) are visible within the first few days of use. Full corrective results (even skin tone, reduced wrinkles, regeneration) appear after 4–6 weeks of consistent care — in line with the skin's natural renewal cycle. You'll get the best results by following the complete line routine twice a day.
Results
How can I check whether this product suits my skin type?
Check the Recommendations field in the Product details section — you'll find precise guidance on skin type there. If you're unsure, take advantage of our free online skincare consultation — our expert will select products tailored to your skin. You can also complete our interactive skincare quiz.
How to use
Can I combine this product with other Christina lines?
Yes. All Christina lines are designed for compatibility. You'll get the best results by following a complete routine from a single line — the products mutually reinforce each other's effects. You can also combine products from different lines (e.g. a Forever Young serum + a Muse cream) — there are no contraindications.
How to use
What is the delivery time?
Orders placed on business days before 11:30 are shipped the same day — you'll receive your parcel the next business day. Free delivery for orders over PLN 200. Standard processing time: 24–48 business hours.
Shipping
Can I return a product?
You have 14 days to return a purchased product from the moment of delivery, in accordance with Polish consumer law. The product must be unopened and in its original packaging. More information in our return policy.
Returns
Are Christina products tested on animals?
No. Christina Cosmetics is a cruelty-free brand — we do not test ingredients or finished products on animals. We verify the safety of our formulas in clinical trials with volunteers under dermatological supervision.
Safety
Are the products safe during pregnancy and breastfeeding?
Most Christina products are safe during pregnancy and lactation — look for the 'Pregnancy safe' badge on the product page. Products containing retinol, higher concentrations of AHA/BHA acids, or strong actives are not recommended during pregnancy. If in doubt, consult a dermatologist or our skincare specialist.
Safety
How should I store the product after opening?
Store Christina products at room temperature (15–25°C), away from direct sunlight and heat sources. After opening, the product retains its full efficacy for the period marked with the PAO symbol (e.g. 12M = 12 months) on the packaging. Products with active vitamins (C, retinol) should be stored away from light.
How to use
How should I apply Christina cosmetics correctly?
Apply Christina cosmetics in order from the lightest to the richest texture: toner, serum, cream, oil. Apply to clean, slightly damp skin using circular motions from the center of the face outward. A full routine takes 3–5 minutes, twice a day.
How to use
What is Christina Cosmetics?
Christina Cosmetics is an Israeli brand of professional skincare cosmetics with a 40-year history. It specializes in advanced formulas that combine natural ingredients with the achievements of biotechnology. The products are available in beauty salons and clinics worldwide.
About the brand
How much does delivery of Christina cosmetics cost?
Delivery of Christina cosmetics is free for orders over PLN 200. For smaller orders, the standard delivery cost is PLN 12 by InPost courier and PLN 9 to a parcel locker. We ship within 24 business hours.
Shipping
Is Christina a natural cosmetics brand?
Yes, Christina Cosmetics uses natural plant extracts as the base of its formulas, combining them with active biotechnological ingredients. The BioPhyto, Forever Young, and Muse lines contain plant oils, herbal extracts, hyaluronic acid, and vitamins. All products are cruelty-free, paraben-free, and SLS-free.
Ingredients
Which Christina line is right for my skin?
Choose a line according to your skin type: BioPhyto for sensitive skin, Forever Young for mature skin with signs of aging, Muse for normal and combination skin, Rose de Mer for peeling, Comodex for acne-prone skin. Take our online skincare quiz to get a tailored recommendation.
Choosing
Where can I buy original Christina cosmetics in Poland?
You can buy original Christina cosmetics in Poland on the official website christinacosmetics.pl. We are the authorized distributor of the Christina brand for the Polish market. We guarantee full authenticity, product certificates, and the freshest batches from the factory in Israel.
