For years, facial acids have been one of the most important pillars of effective, modern skin care. Their popularity does not stem from a fleeting trend, but from their well-documented biological effects: they regulate the epidermal renewal process, improve skin structure, influence its tone, hydration, and protective barrier function.
Contrary to popular belief, acids are not solely for exfoliation. Modern cosmetology treats them as active ingredients with multi-directional effects – from normalizing the microbiome, through anti-inflammatory action, to supporting the skin with problems such as acne, hyperpigmentation, rosacea, or the first signs of aging.
The acids I present in today's post are safe for pregnant women in the cosmetics I am featuring here.
How do facial acids work? A mechanism worth understanding
The action of facial acids is based on their ability to influence the connections between cells of the stratum corneum and the biochemical processes occurring in the skin. Depending on the type of acid, this effect can be gentle or more intense.
Acids can:
- regulate the rate of cellular renewal,
- support natural exfoliation processes,
- improve skin hydration by stimulating NMF,
- reduce inflammation and hyperreactivity,
- influence melanin synthesis and reduce hyperpigmentation,
- strengthen the hydrolipid barrier function.
Therefore, it is crucial to match the type of acid to the skin's needs, rather than solely focusing on their "strength."
Types of facial acids used in Orientana cosmetics
Azelaic acid – acid for problematic and sensitive skin
Azelaic acid is one of the best-tolerated acids in facial care, particularly valued for acne-prone, couperose, and rosacea-prone skin. It stands out for its anti-inflammatory, antibacterial, and normalizing effects.
On facial skin, azelaic acid:
- limits the growth of bacteria responsible for acne lesions,
- reduces redness and inflammation,
- helps even out skin tone,
- does not cause typical "flaky exfoliation."
Thanks to this, it is often chosen as an all-year-round acid, also suitable for sensitive complexions.
Lactic acid - hydration and gentle skin smoothing
Lactic acid belongs to the AHA group, but in facial care, it is primarily known for its moisturizing and smoothing properties. It naturally occurs in the skin as a component of NMF (natural moisturizing factor).
In facial cosmetics, lactic acid:
- supports the maintenance of adequate hydration levels,
- improves skin elasticity and softness,
- gently evens out the epidermal structure,
- helps with dry and dehydrated skin.
It is one of the best-tolerated acids, recommended for people starting their journey with facial acids.
Tartaric acid - antioxidant skin protection
Tartaric acid is an AHA acid of plant origin, known for its antioxidant properties and support for skin regeneration. In facial care, it plays the role of an ingredient that supports skin balance and protects it from oxidative stress.
It acts on the skin by:
- gently smoothing the surface of the epidermis,
- supporting regenerative processes,
- protecting cells from free radicals.
Thanks to its mild nature, it can be used in the care of demanding skin, including dull skin.
Orientana uses tartaric acid in hair cosmetics.
Tranexamic acid - specialist for hyperpigmentation
Tranexamic acid has gained immense recognition in the care of skin with hyperpigmentation, melasma, and uneven skin tone. Unlike classic acids, it does not primarily exfoliate, but rather interferes with the melanin formation process.
In facial care, tranexamic acid:
- limits the formation of hyperpigmentation,
- supports the lightening of existing blemishes,
- has anti-inflammatory effects,
- does not disrupt the hydrolipid barrier.
This acid is ideal for people who want to work on skin tone without the risk of irritation.
Gluconolactone - a new generation acid (PHA)
Gluconolactone is a representative of PHA acids, described as new-generation acids. Its molecule is larger than that of AHA, making it act exceptionally gently, yet effectively.
On facial skin, gluconolactone:
- intensely moisturizes,
- strengthens the hydrolipid barrier,
- has antioxidant properties,
- supports the skin's microbiome,
- improves the comfort of sensitive skin.
It is one of the best choices for reactive, couperose complexions, and for people who do not tolerate classic acids.
How to safely use facial acids?
The safety of using facial acids depends not only on their type, but also on regularity, concentration, and the entire skincare routine. Strengthening the skin barrier and sun protection are key.
Basic rules for using acids:
- introduce them gradually,
- avoid combining many acids at once,
- always use SPF protection,
- ensure skin hydration and regeneration.
Properly selected acids do not weaken the skin – on the contrary, they teach it to function properly.
Facial acids and long-term care
Modern skincare is not about aggressive action, but about supporting skin physiology. The acids used in Orientana align with this philosophy – they are chosen to act effectively, but with respect for the hydrolipid barrier and microbiome.
Regular use of appropriate acids can:
- improve skin texture,
- even out skin tone,
- increase hydration,
- strengthen the skin's resistance to external factors.
Most frequent questions about facial acids
Can facial acids be used daily?
Yes, provided they are mild acids, such as gluconolactone or lactic acid, and are properly integrated into the skincare routine.
Which facial acids are best for sensitive skin?
Gluconolactone and azelaic acid are among the best-tolerated acids for sensitive skin.
Can facial acids be used all year round?
Yes, if they are mild acids and accompanied by daily sun protection.
Do acids always cause skin exfoliation?
No. Many acids have regulating and moisturizing effects, without visible exfoliation.
Do acids help with hyperpigmentation?
Yes, especially tranexamic acid and acids that support epidermal renewal.
Summary – what facial acids to choose?
Facial acids are not a homogeneous group of ingredients. Each of them acts differently and responds to different skin needs. Azelaic acid, lactic acid, tartaric acid, tranexamic acid, and gluconolactone create a complete palette of solutions for modern, conscious skincare.
The key to success is not intensity, but matching the acid to the skin and long-term support for its natural mechanisms.







