Lait S.R.
Lait S.R.
Product Description
Product overview
Biologique Recherche Lait S.R. is a purifying, rebalancing cleansing milk built for oily, combination and seborrheic skin. Its fresh, lightweight gel-cream texture lifts away makeup, excess sebum and impurities without stripping the skin or leaving a film — for a clean, matte, healthier-looking complexion.
Non-Stripping Cleanse
Removes sebum, makeup and pollution without disrupting the hydrolipidic barrier or leaving skin tight.
Texture & feel
SENSORYNon-Stripping Cleanse
Removes sebum, makeup and pollution without disrupting the hydrolipidic barrier or leaving skin tight.
Sebum Regulation
Onion bulb and myrtle leaf extracts help rebalance excess oil for a fresher, shine-free look.
Pore Purifying
Botanical astringents help decongest and visibly refine enlarged or clogged pores.
Barrier-Friendly Milk Base
The milk format delivers lipids and tolerance, so it cleanses gently without soap or sulfates.
Safety & compatibility
SAFENo retinoids, salicylic acid, hydroquinone or chemical UV filters. Generally considered safe, but confirm with your doctor.
Contains esters and polyglyceryl emulsifiers that aren't FA-safe. Rinse-off use lowers the risk, but it isn't "safe list" approved.
As a cleanser it pairs with everything — Lotion P50, vitamin C, retinol, AHA/BHA serums applied afterward.
Multiple plant extracts (myrtle, onion, rosehip, myrrh). Patch test first if your skin is very reactive.
Not tested on animals and free of reef-harming UV filters.
No parabens, silicones, sulfates, drying alcohol, mineral oil or added synthetic fragrance.
Ingredient breakdown
INGREDIENTSSaccharide Isomerate HumectantProven
A plant-derived sugar complex that bonds to skin and draws in moisture, helping the cleanse stay comfortable rather than tight.
- Mechanism: Structurally mimics the carbohydrates in the skin's surface, giving long-lasting humectant binding.
- Evidence: Studied as an effective long-acting moisturizer that reduces feelings of tightness and roughness.
Spiraea Ulmaria (Meadowsweet) Extract BotanicalPromising
Meadowsweet is a traditional astringent botanical naturally containing salicylates and tannins, valued for toning and purifying oily, congested skin.
- Function: Used as an astringent and soothing agent to help calm and refine the appearance of the skin.
- Note: Cosmetic-strength botanical — supportive rather than a high-dose active.
Commiphora Myrrha (Myrrh) Resin Extract BotanicalPromising
Myrrh resin is the signature botanical of this formula, traditionally used for its soothing and purifying properties on blemish-prone skin.
- Reported activity: Manufacturers cite skin-soothing and antibacterial-supporting properties from its resin compounds.
- Role here: Helps calm and balance skin showing a seborrheic tendency.
Allium Cepa (Onion) Bulb Extract BotanicalPromising
Onion bulb extract is rich in antioxidants such as quercetin and sulfur compounds, used to support sebum regulation and an even-looking complexion.
- Antioxidant: High in flavonoid antioxidants that help defend against oxidative stress.
- Studied: Onion extract has been researched for improving the look and texture of scars in clinical settings.
Myrtus Communis (Myrtle) Leaf Extract BotanicalPromising
Myrtle leaf is an aromatic Mediterranean botanical used as an antioxidant and natural toning agent that helps purify oily skin. It also contributes a light herbal scent.
- Function: Antioxidant and purifying/toning support for shine-prone skin.
- Heads up: Acts as the formula's natural fragrance component, so highly fragrance-averse skin should patch test.
Rosa Canina (Rosehip) Fruit Extract BotanicalPromising
Rosehip is naturally abundant in vitamins C and E plus fatty acids, adding antioxidant and conditioning support to the cleanse.
- Antioxidant vitamins: Vitamins C and E help defend skin and brighten the look of tone.
- Conditioning: Fatty acids soften and help maintain comfort.
Jojoba Esters & Tocopherol (Vitamin E) SupportProven
Jojoba esters are skin-identical wax esters that reinforce the moisture barrier, while tocopherol is a well-studied antioxidant that protects skin lipids.
- Jojoba esters: Closely resemble skin's own sebum, helping trap moisture and keep cleansing gentle.
- Tocopherol: A fat-soluble antioxidant that helps strengthen and protect the lipid barrier.
28 ingredients
Water (Aqua), Coco-Caprylate/Caprate, Dicaprylyl Carbonate, Caprylic/Capric Triglyceride, Polyglyceryl-6 Distearate, Saccharide Isomerate, Butylene Glycol, Cetyl Alcohol, 1,2-Hexanediol, Jojoba Esters, Spiraea Ulmaria Extract, Rosa Canina Fruit Extract, Myrtus Communis Leaf Extract, Allium Cepa (Onion) Bulb Extract, Commiphora Myrrha Resin Extract, Citric Acid, Glycerin, Lecithin, Tocopherol, Caramel, Propylene Glycol, Sodium Stearoyl Glutamate, Sodium Acrylates Copolymer, Polyglyceryl-3 Beeswax, Caprylyl Glycol, Sodium Citrate, Sodium Benzoate, Potassium Sorbate.
Where it fits in your routine
ROUTINEUse as your first cleansing step morning and evening, then follow with a toning lotion (such as Lotion P50) to rebalance the skin before serums and moisturizer.
How to use
HOW TO USEApply to dry skin
Dispense a small amount onto dry hands and spread over the face, neck and décolleté.
Emulsify
Massage with light smoothing strokes, working from the centre outward, to dissolve makeup and oil.
Add water & remove
Add a little water, then wipe away with damp cotton pads or a warm, damp washcloth.
Repeat if needed
Cleanse a second time until all impurities are gone, then continue with your toning lotion.
Who is it for?
WHOPerfect for you if:
- You have oily, combination or seborrheic skin
- You deal with enlarged pores, congestion or breakouts
- You want a gentle, non-foaming cleanse that won't strip
- You prefer a barrier-respecting milk-format cleanser
- You're building a Biologique Recherche routine
Consider alternatives if:
- Your skin is very dry or dehydrated (try Lait VIP O2 or Lait Dermo-S)
- You strictly follow a fungal-acne-safe routine
- You crave a deep, foaming, squeaky-clean feel
- You're shopping on a tight budget
- You react to multiple botanical extracts
Skin type compatibility
SKIN TYPESThe core use case — lifts excess sebum and leaves a fresh, shine-free, non-tight finish.
Balances oily zones while staying gentle on drier areas, without overcleansing.
Purifying botanicals help decongest pores; not certified fungal-acne safe, so FA-prone users should note that.
No sulfates or drying alcohol, but the plant-extract blend means a patch test is wise for reactive skin.
Comfortable but oriented toward oil control — dry skin may prefer the richer Lait Dermo-S or Lait VIP O2.
Results timeline
WEEK 8+Clean, comfortable skin
Skin feels thoroughly cleansed and soft — not tight or stripped — with makeup and the day's oil removed.
~88% noticedLess midday shine
Regular morning and evening use helps skin look more matte and feel fresher through the day.
~70% noticedClearer, smoother texture
Pores can look more refined and congestion bumps reduced as the routine settles in.
~60% noticedMore balanced complexion
With consistent use alongside the rest of a routine, skin tends to look more balanced and even.
~55% noticedRatings by platform
40+ REVIEWSNote: Lait S.R. launched as part of Biologique Recherche's 2023 cleanser update (alongside Lait Dermo-S), replacing the original Lait U. As a spa-distributed brand it isn't carried at Sephora or Ulta, so review volume is lower and more spread out than mass-market cleansers. Ratings above are approximate aggregates.
Pros & cons
BALANCEDPraised
- Removes oil, makeup and grime without stripping
- Leaves skin matte and fresh, never tight
- Lightweight, non-greasy milky texture
- Botanical sebum-regulating and purifying actives
- Part of the trusted Biologique Recherche method
Criticized
- Expensive compared with most cleansers
- Not certified fungal-acne safe (esters/emulsifiers)
- Limited availability (spa/specialty only)
- Botanical blend may not suit very reactive skin
- Best removed with a cloth/cotton, not a quick rinse
Budget-friendly alternatives (dupes)
DUPESA gentle, non-stripping creamy cleanser from a French pharmacy brand. Similar barrier-friendly feel, but no sebum-regulating botanicals and less oil-control focus.
Ceramide-rich, fragrance-free milky cleanse that's very gentle. Aimed at barrier support rather than oily skin, with no purifying plant extracts.
A balm-to-oil that melts away makeup affordably. Minimalist formula with no sebum-targeting or toning botanicals, and a different texture experience.
Comparison with competitors
SIDE-BY-SIDEShiseido Extra Rich Cleansing Milk
Storage & shelf life
12 MONTHS12 months after opening
Store in a cool, dry place away from direct sunlight and heat.
Plastic bottle with flip cap; available in 50ml, 150ml and 250ml.
Yes — the 50ml size is under 100ml and carry-on compliant.
Frequently asked questions
FAQIt's generally considered pregnancy- and breastfeeding-friendly. The formula contains no retinoids, salicylic acid, hydroquinone or chemical sunscreen filters — the ingredients commonly flagged during pregnancy. It relies on gentle cleansing agents and botanical extracts. As always, run your full routine past your doctor or midwife if you have any concerns.
Not strictly. It contains esters (coco-caprylate/caprate, caprylic/capric triglyceride), polyglyceryl emulsifiers and lecithin that can feed malassezia, so it isn't on the "fungal-acne safe" list. Because it's a rinse-off cleanser with limited contact time, the practical risk is lower than a leave-on product — but if you're managing active fungal acne, you may prefer a stricter FA-safe cleanser.
Yes. As a cleanser it's the first step and washes off, so it's compatible with any actives you apply afterward — retinol, vitamin C, AHA/BHA serums or a toning lotion like Lotion P50. Cleanse, then layer your treatments as usual.
It's formulated for oily, combination and seborrheic skin — anyone dealing with excess shine, enlarged or clogged pores, and congestion. Dry or very dehydrated skin will usually be happier with a richer option such as Lait Dermo-S or Lait VIP O2.
Skin feels clean and comfortable from the first wash. Reduced midday shine often shows within 1–2 weeks of twice-daily use, with clearer-looking texture and more refined pores around the 4-week mark as part of a consistent routine.
It's your first step, morning and evening. Apply to dry skin, emulsify to lift makeup and oil, then remove with a damp cloth or cotton. Follow with a toning lotion, then serums, eye care, moisturizer and (in the morning) sunscreen.
It rates low — around 2/5. It uses lightweight coconut-derived emollients rather than heavy oils, and as a rinse-off product it has minimal pore-clogging potential. It's actually designed to help decongest pores in oily skin, though FA-prone users should note the ester content.
Plan to use it within about 12 months of opening (check the PAO jar symbol on the packaging). Keep it in a cool, dry spot away from direct sun to preserve the botanical extracts and antioxidants.
Verdict: Lait S.R. is a refined, barrier-respecting cleansing milk that does exactly what it promises for oily, combination and seborrheic skin — lifting sebum, makeup and grime while leaving skin matte and comfortable rather than tight. The botanical blend of myrrh, meadowsweet, onion and myrtle adds genuine purifying and sebum-regulating character, and the absence of sulfates, drying alcohol and added fragrance makes it easy to tolerate. The trade-offs are real: it's premium-priced, available mainly through spas and specialty retailers, and not certified fungal-acne safe. If you love the Biologique Recherche method and want a gentle daily cleanse that respects your barrier, it's an easy recommendation; bargain hunters and strict FA-routines should look elsewhere.
Product Overview
Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.
Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.
Quick Product Notes
Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging «promises» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.
We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.
Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.
Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you
Notable Effects & Ingredients
Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.
We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.
A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.
One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!
Ingredients Related to Skin Types
Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.
EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.






