Sai Clear Skin Serum

Smoothing and brightening vitamin C treatment

17 reviews


20 ml; 0.68 fl. oz.

SKU: N/A Category:

“Breathe deep and transport yourself to a temple of calm.”

Sai Clear Skin Serum receives its name from the visible result it provides. A powerhouse antioxidant serum that combines an intense vitamin C treatment to scavenge free-radicals and protect against photodamaging with heat-clearing organic plants that soothe lesions and inflamed redness on the spot. Then it adds in science-proven actives that brighten dark spots and post-trauma skin such as post-acne hyperpigmentation to even overall skin tone.

“Veil of Sai” is skin-like protective thin layer that occurs after application. This is your all-day moisture retention blanket – the key to plump and smooth skin. Sai’s high ability to keep moisture within your cells allows it to effectively provide a firm appearance with a natural glow.

Scent Experience: A unique combination of Cypress, Rose, Jasmine, Ylang ylang and Vanilla creates a zen-like sensory that will transport you to a sacred space — a temple in Thailand filled with incense, where you can find your inner peace.

Sai is a recommended for all skin types.

Star Ingredients

Complete Ingredients List


Vitamin C Ester (Water Soluble)

Milk Thistle

Cassia Tora


Cools and heals wounds. Great for treating acne, psoriasis, eczema or a rash.

Vitamin C Ester (Water Soluble)

A more stable form of vitamin C, rich in antioxidants and anti-inflammatory benefits. Vitamin C Ester improves skin elasticity and reduces the appearance of hyperpigmentation.

Milk Thistle

Brightens skin tone, fades post-acne scarring and hyperpigmentation.

Cassia Tora

Botanical hyaluronic acid, plumps, hydrates and draws moisture to the skin.

Black Rice Water* (antioxidant activity and elastase inhibitory effect), Vitamin C Ester (eliminates active acne, brighten, boost collagen production) MSM (repairs and protects skin barrier, reduce redness), Cassia tora water* (draws moisture to skin) , Gluconolactone, Arginine (increases natural collagen production, retains hydration in the skin), Moth Bean Extract (increases cell-turnover rate, brightens), Chebulic Myrobalan Extract* (potent source of vitamin C, fights bacteria), Turmeric Extract* (healing anti-inflammatory), Aloe Vera Inner Fillet Juice* (instantly hydrates, promotes wound-healing), Ceramide NP, Ceramide AP, Ceramide EOP, Phytosphingosine, Cholesterol, Sodium Lauroyl Lactylate, Carbomer (protects and repair skin barrier function for overall healthy skin), Clove Basil Extract* (Strong antibacterial activity, potent acne fighter), Green Tea Extract*(potent antioxidants, promotes graceful aging), Lactobacillus ferment (probiotic to provide broad spectrum antimicrobial activity), Milk Thistle Extract (brightens, evens skin tone, fades scarring and hyperpigmentation), black raspberry oil (decrease inflammation and oxidative damage in cells), Gypsum (cools skin, releases heat and heals wounds), Cetearyl Alcohol and Cetearyl Glucoside (non GMO vegetable-derived, sustainable emulsifier), Babchi Extract* (evens skin tone, increase cell-turnover), Frankincense Extract* (calms active inflammation, heals wound, potent for active cystic acne), Cape jasmine extract* (accelerates wound repairing process), Coptis Extract*(significantly protects against UV damage, improves skin sagging), Amur Cork Tree* (alleviates eczema, redness and sensitivity), Skullcap Baical extract* (relives allergies, fights free radical, strong antibacterial), Barberry Extract* (fights acne, tightens and controls oil production), Ceylon Leadwort Extract* (antibacterial, relieves inflammation and pain), Wild Angelica Extract* (accelerates wound healing and lightens hyperpigmentation), Licorice Extract* (soothes irritation and heals troubled skin), Red Peony Extract* (protects against photo-damaging and anti-inflammatory), Siamese Neem Extract** (fights acne, antibacterial, protects against UV damage) Kali Jeeri Extract** (reduces itch and irritation), **, Green Chiretta Extract* (improves hydration and dermal density and sagging), Beard lichenextract* (antiseptic, accelerates wound-healing), Wild Indigo Extract* (effective in treating psoriasis and healing wounds), Galla Chinensis Extract* (antifungal, improves healing of scar), Nutmeg Extract* (brightens dull skin, fights against infection and heals acne), Black Pepper Extract* (stimulates circulation, enhances permeability of other actives), Indian Sarspilla Extract* (anti-inflammatory, soothes psoriasis), Arjuna Extract* (reduces scaliness, improves hydration and elasticity), Ashwangandha Extract* (powerful antioxidants, prevents cell breakdown and premature aging), Rhubarb Extract* (reduces photodamage in the cells, supports cell reparing process), False Daisy Extract* (prevents bacteria growth while soothing the skin), Mangosteen Extract* (antioxidants and antibacterial), Aspen Bark Extract* (natural salicylate acids to exfoliate inner lining of pores, controls acne, also acts as preservatives), Raspberry Ketone Glucoside (lightens hyperpigmentation and brightens complexion), Bahera Fruit Extract* (antiseptic, potent antibacterial, calms irritation), Amla Extract* (brightens and supports natural collagen production), Propanediol 1,3 (derived from corn, preservative booster and humectant), Tocopherol (p


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While skin is still wet (from Yen Heal & Hydrate Toner or water), shake and pump 1-2 pumps of Sai Serum onto a palm of your hand.


Activate the formula by rubbing the palms together and cup over your nose to stimulate your senses.


Gently press the serum into face and neck using an outward and upward, lifting motion.


Gently follow the technique shown here to stimulate circulation, bringing oxygen to the surface to ensure maximum absorption of the steps to follow.

Complete your ritual and follow with Yen Heal & Hydrate Essence Toner

We recommend using the Push and Press Technique when using the Sai Clear Skin Serum

Love Story

I have always struggled with post acne hyperpigmentation on my skin and Sai was the answer to that problem.

My intention with Sai was to create a serum to help heal skin hyper-pigmentation that occurs after inflammation. After two years of delving deeper into research and testing, I have created a very special formula. Drawing on ancient wisdom and utilizing plant synergies and modern science, Sai is so much more than a brightening serum.

Sai helps expedite the natural healing process of our skin, including cutting down inflammation and the time to heal. Sai firms and smooths skin texture — you can immediately feel its tightening effect after the first application. When fully absorbed, Sai leaves a skin-like feel, serving as the first line of defense against environmental aggressors. It protects your skin against the loss of existing moisture and draws additional moisture from the air to your skin, creating a beautiful smooth and supple natural glow, like you just had a facial.

I can’t wait for you to feel its ability to protect your skin barrier and improve the overall health of your skin.

NOTE: Sai is so concentrated, containing over 90% of more than 50 actives ingredients and less than 3% of total oils. It should be shaken well and applied on damp skin. Sai works beautifully with Yen Heal & Hydrate and dries down to a smooth and glowing finish.

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What our customers say...

17 reviews
17 reviews for Sai Clear Skin Serum
  1. Sinziana

    “Just wanted to tell you that the Sai is a life changer. I’ve already been such a die hard convert to the Morning Delight and Yen Heal & Hydrate but Sai has started clearing up these dark spots of my face I COULD NOT get rid of no matter what I tried. Thank you! This is now a forever product, will be ordering again soon.” – Tafv

  2. Sinziana

    “I loved the smoky smell of this serum. It worked well fixing my face after hormonal acne flare up. Highly recommend.” – Diana

  3. Sinziana

    “Love the Sai serum. On my second bottle now, I gifted one for my brother and ordered another one as backup… My ginormous acnes are significantly reduced. The ones on my neck have shrunk within days of use, I am impressed, those suckers normally linger on for weeks.” – Pratikshya

  4. Sinziana

    “It clears pimples almost overnight, and I do see a visible difference in the brightness and texture of my skin when I use it. I will get this again! I’ve just been so impressed by the performance of everything I’ve tried from this South East Asian-inspired line.” – Arjun

  5. Sinziana

    “It’s a beautiful product! I’m noticing pigmentation on my nose is brightening up after using this consistently in the morning for over a month now. This has become my favorite Vitamin C serum.” – Ashley

  6. Sinziana

    “I’m so in love with Sai. I think my hyper-pigmentations are less visible now, and the matte skin after every application leaves me glowy. I really love the scent too.” – Ying

  7. Sinziana

    The results are so impressive, I’ve already bought a backup because I never want to be without it, and I NEVER do that, always on to trying something else.” – Erin

  8. Sinziana

    “It does wonders for my skin. Temples in Thailand must smell like temples in India, this reminds me of temples too. Gorgeous serum, worked wonders for acne prone skin, healed and brightened skin.” – Payal

  9. Sinziana

    “Just got another after my Boxwalla one went kaput. Love it so much. My skin has been super clear since I started using it. Holy grail status.” – Sarah

  10. Sinziana

    “Smells awesome like pure vanilla extract and have had zero reactions or sensitivity so far. My skin is so clear and smooth when I wake up after using Sai the night before! It’s amazing.” – Mercy

  11. Sinziana

    “I’m loving Sai so much! It’s such a great feeling to discover new textures that take us out of our comfort zone.” – Ru Voy

  12. Sinziana

    “I reach for Sai whenever I have a blemish. It helps destroy bacteria and heal the area within days!!” – Floriana

  13. Sinziana

    “Been using Sai day and night for last two weeks and it really has helped with the inflammation and texture of my skin.” – Sorn

  14. Sinziana

    “Sai clearing serum is in a league of its own… I saw a couple of new painful pimples appearing near my jaw line. So I put Sai serum to test. The first night I applied Sai, the pimples came to a head the subsequent day. The day after, the size of the pimple shrunk and they weren’t painful anymore. I was simply amazed. Sai has been so effective in healing the active pimples. And even though my skin isn’t entirely clear right now (pimple and some old acne scars), I have noticed it has been looking clearer and brighter.” – Shobhita

  15. Sinziana

    “As you know, acne is a tricky beast, so I can’t say enough what a difference your products have made for me! Seriously, before Sai I used to look like a Dalmation dog because I am super pale and my skin heals very slowly, so I would have very noticeable dots from acne scars all over the face.” – Neige

  16. Sinziana

    “Hi!! I just wanted to let you know that I had to reorder the Sai serum at full price because my face has not been the same since! I had difficulty using the product at first and my first impression was ‘meh’ but it quickly became a staple! And I never would’ve found it if it wasn’t for your box!!! I wish I wasn’t paying full price but it’s worth it. Thank you for quality products ALWAYS.” – Boxwalla Customer

  17. Sinziana

    “Sai has a unique texture compared to any other serum I’ve used. It feels quite thick, clumpy & grainy when pumped out of the bottle, but after warming it up in the palm of my hands, I am able to press it into my skin where it absorbs almost immediately. The grainy texture is due to Gypsum which is an ingredient known for it healing properties. In Sai, it functions to reduce inflammation. Once applied, I no longer feel the powderiness & instead my skin feels like it has a protective layer. I do find this makes my skin look more brightened & even toned, with the breakouts on my forehead (my problem area) calmer & with consistent use, reduced.” – Sam