The Complete Guide to Skincare Acids: Which Acid Solves Which Problem
There are 15+ acids in skincare. You probably need two. This guide tells you which two. The word "acid" sounds like it should burn your face off. It shouldn't, and...

Skin ageing is multidimensional. Your night cream should be too.
Visible ageing is not limited to fine lines. Over time, skin may experience reduced firmness, loss of elasticity, dryness, uneven texture, weakened barrier function and a tired appearance.
TimeLock™ combines advanced regenerative actives, retinol, peptides and multi-level hydration in one complete night formula. It is designed to support skin renewal while you sleep, helping your skin appear smoother, firmer, plumper and more revitalised.
TimeLock™ is powered by multiple complementary active technologies, each selected to address different visible signs of ageing.
Retinol supports the skin's natural renewal process and helps improve the appearance of fine lines, wrinkles and uneven texture. With consistent use, it helps skin appear:
TimeLock™ contains plant-derived PDRN sourced from Damask rose. It supports skin regeneration and repair, helping tired-looking skin appear healthier, refreshed and revitalised.
Its inclusion makes TimeLock™ more than an ordinary retinol night cream, adding an advanced regenerative dimension to the formula.
Neodermyl® is an advanced active combining methylglucoside phosphate with copper lysinate/prolinate. It supports the skin's collagen and elastin system to help improve the visible appearance of:
The result is skin that appears firmer, more resilient and better supported.
PhytoCellTec™ Exosomes are derived from Lycium barbarum callus culture and developed for advanced age-defying skincare. This technology supports cellular communication associated with skin rejuvenation and helps improve the appearance of:
Centi-Peptine™ is a microalgae-derived multi-peptide complex designed to address multiple age-related skin concerns simultaneously. Unlike a conventional single-peptide formula, this complex supports five important dimensions of youthful-looking skin.
Powered by Centi-Peptine™, an advanced microalgae-derived complex containing 135 peptide sequences identified as homologous to human skin structural proteins.
Its multi-peptide approach supports five essential dimensions of smoother, firmer and healthier-looking skin.
Helps support skin structure for a firmer, fuller and more youthful appearance.
Helps skin appear more supple, resilient and flexible.
Supports the skin barrier to help maintain moisture, comfort and softness.
Helps soften the visible appearance of fine lines and wrinkles.
Supports the renewal and recovery of tired, ageing-looking skin.
Dryness can make fine lines, roughness and uneven texture appear more noticeable. TimeLock™ combines humectants, emollients and skin-conditioning ingredients to provide hydration at multiple levels while supporting softness, plumpness and overnight comfort.
An advanced form of hyaluronic acid with strong skin affinity. It helps moisture remain closely associated with the skin, supporting longer-lasting hydration, improved softness and a smooth, supple appearance.
A powerful moisture-binding ingredient that attracts and retains water. It helps replenish dehydrated-looking skin, smooth the appearance of dryness-related lines and promote a visibly plumper complexion.
A lightweight, skin-compatible emollient that helps replenish moisture without creating an excessively heavy feel. It leaves skin feeling soft, smooth, nourished and comfortably conditioned.
Also known as provitamin B5, Panthenol helps moisturise and soothe the skin. It supports barrier repair and improves skin comfort, making it especially valuable within an advanced overnight formula.
A naturally derived humectant that helps the skin maintain balanced hydration. It supports softness and comfort while helping protect against the tight, dry feeling associated with moisture loss.
Complementary humectants that attract moisture and help distribute it throughout the formula. Together, they support comfortable overnight hydration and enhance the serum cream's smooth application.
Retinol supports skin renewal and helps refine uneven texture.
Damask Rose-Derived PDRN supports repair and revitalisation.
Neodermyl® and Centi-Peptine™ help improve the visible appearance of firmness and elasticity.
PhytoCellTec™ Exosomes support advanced skin rejuvenation.
Hyaluronic Acid, Sodium Acetylated Hyaluronate, Squalane, Panthenol and Betaine provide multi-level moisture support.
Panthenol, Betaine and the moisturising base help maintain skin comfort.
Helps soften their visible appearance for smoother-looking skin.
Supports a firmer, more structured and resilient appearance.
Helps skin appear more supple and flexible.
Provides lasting moisture to improve softness and visible plumpness.
Supports skin renewal and helps refine rough-looking areas.
Restores a healthier, fresher and more radiant appearance.
Supports the skin's moisture barrier and helps protect against dryness.
TimeLock™ is more than a conventional night cream. Its advanced serum-cream texture combines a concentrated multi-active system with the moisturising comfort required for overnight skincare.
It spreads smoothly, absorbs comfortably and leaves the skin feeling:
TimeLock™ is designed for women and men experiencing:
Apply a small amount to a cleansed and completely dry face and neck.
Gently massage using upward circular motions until fully absorbed.
Use once daily at night.
During the daytime, follow with a broad-spectrum sunscreen of SPF 30 or higher.
Aqua (Water), Glycerin, Propanediol, Betaine, Caprylic/Capric Triglyceride, C12-15 Alkyl Benzoate, Squalane, Glyceryl Stearate (and) PEG-100 Stearate, Cetyl Alcohol, Cetearyl Alcohol, Dimethicone, PDRN (and) Aqua (Damask Rose Derived), Neodermyl® [Glycerin (and) Water (and) Methylglucoside Phosphate (and) Copper Lysinate/Prolinate], PhytoCellTec™ Exosomes [Lycium Barbarum Callus Culture Extract (and) Isomalt (and) Lecithin (and) Aqua], Centi-Peptine™ (Peptide Complex), Panthenol, Sodium Acetylated Hyaluronate, Hyaluronic Acid, Sodium Gluconate, Retinol, Sodium Phytate, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Rhizobian Gum, Phenoxyethanol (and) Ethylhexylglycerin, Sodium Hydroxide.
| Conventional night cream | RayGlow TimeLock™ |
|---|---|
| Primarily moisturises | Combines renewal, repair, firming and hydration |
| Usually features one key active | Next-generation multi-active system |
| Basic moisturising base | Dual hyaluronic acid hydration system |
| Limited peptide support | Centi-Peptine™ 5D Multi-Peptide Complex |
| Conventional age care | Retinol + PDRN + Neodermyl® + PhytoCellTec™ Exosomes |
| Provides surface softness | Supports smoother, firmer and revitalised-looking skin |
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